CN105321533A - 由用于能量辅助磁记录的横向电波导驱动的近场换能器 - Google Patents
由用于能量辅助磁记录的横向电波导驱动的近场换能器 Download PDFInfo
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Abstract
本发明涉及由用于能量辅助磁记录的横向电波导驱动的近场换能器。具体地，本发明涉及一种设备，其包括工作在横向电(TE)模式中的介质波导芯、近场换能器(NFT)，该介质波导芯被配置为从能量源接收入射光能并将该入射光能引导至目标。该NFT被配置为聚焦从波导芯接收的光能并将聚焦的光能传送到存储盘表面上以生成加热点。该NFT包括由来自波导芯的光能励磁的传播表面等离子体极化激元(PSPP)元件。每个PSPP元件具有在纵向与波导芯对准在单波导芯的表面上面布置的等离子金属条、接收来自波导芯的光能的第一端、以及裸露于空气支承面的第二端。每个金属条的宽度朝向第一端逐渐变窄。
Description
相关申请的交叉引用
本申请要求在2014年6月10日提交的申请号为62/010111的美国专利申请的权益，该申请的全部内容通过整体引用合并于此。
背景技术
高密度存储盘被配置为具有提供存储所需数据稳定性的材料层。当向盘写入时，介质的磁特性需要软化以帮助改变位状态。能量辅助磁记录(EAMR)装置或热辅助磁记录(HAMR)技术提供当在磁存储盘上写入时，聚焦在纳米大小的位区域上以实现磁软化的热度。光波导引导光从激光二极管到近场换能器(NFT)。NFT耦合来自波导(WG)的衍射受限光，随后将超出衍射极限的光场能量向下聚焦到允许EAMR/HAMR写入磁存储盘的高度集中(纳米大小的)近场介质加热点(heatingspot)。NFT的不足对激光二极管的功率分配和EAMR/HAMR系统使用寿命有负面影响。更高的NFT效率允许更低的激光功率需求，减轻EAMR/HAMR系统对激光源的总体光学功率的需求，并且产生更少的EAMR/HAMR磁头的寄生加热功率，从而产生改进的可靠性。
光波导主要可以在下列模式中的任一种模式中工作以驱动NFT。在横向电(TE)模式中，主要的电场分量在波导芯上方的横向方向(即在x轴的端到端(side-to-side))。在横向磁(TM)模式中，并且主要的磁场分量在横向方向(即，在x轴的侧边)时，同时在波导芯上面的主要电场分量具有明显的纵向方向(z轴)分量。使用TM模式波导驱动NFT具有在沿波导的方向易于耦合到在波导芯上面的NFT的强电场的优点。对于使用产生TE模式波的激光二极管的EAMR/HAMR装置来说，需要TE模式到TM模式转换器以激励波导中的TM模式。通过TE波导驱动的有效NFT具有避免TE模式到TM模式转换器的优点，这提供更紧凑和更高效的光输送系统。
附图说明
本发明的各个方面现将借助参考附图的示例在下面的具体实施方式中陈述，所述示例并不是为了限制，其中：
图1示出示例性硬盘驱动器的示意图；
图2示出用布置在两个TE介质波导芯上面的两个局部倾斜等离子金属条形成的NFT的示例性实施例的示意图。
图3示出用布置在两个TE介质波导芯上方的两个完全倾斜等离子金属条形成的NFT的示例性实施例的示意图。
图4示出TE波导芯以及并入散热片和用于写入头的磁杆的NFT的示例性实施例的示意图。
图5示出用于驱动NFT的TE波导芯的示例性实施例的示意图，其中，NFT形成为具有一个倾斜边缘的等离子金属条。
图6示出用于驱动NFT的TE波导芯的示例性实施例的示意图，其中，NFT用具有两个倾斜边缘的等离子金属条形成。
图7示出用于驱动NFT的TE波导芯的示例性实施例的示意图，其中NFT形成为具有布置在偏移该波导芯中心线的波导芯上方的等离子金属条。
图8示出用于驱动NFT的TE波导芯的示例性实施例的示意图，其中，NFT形成为具有以歪斜(askew)构造布置在波导芯上方的等离子金属条。
具体实施方式
下面结合附图阐述的具体实施方式旨在描述各个示例性实施例并不是旨在表示只可以被实践的实施例。具体实施方式包括用于提供各实施例的透彻理解的目的的具体细节。不过，显而易见，本领域的技术人员可以在没有这些具体细节的情况下实践各实施例。在某些实例中，众所周知的结构和部件以框图的形式示出，以避免模糊各实施例的内容。缩写词和其他描述性术语仅为了方便和清晰起见来使用，并非旨在限制各实施例的范围。
在附图中示出的各个示例性实施例可能并非按比例绘制。相反，为了清晰起见，各个特征的尺寸可以被放大或减小。另外，为了清晰起见，某些附图可以被简化。因此，附图可能并非描绘给定设备的所有部件。
各个实施例将参考理想化构造的示意图的附图来描述。因此，由于例如制造技术和/或公差产生的例证形状的变异是可以预期的。因此，在整个公开陈述的各个实施例不应解释为局限于本文示出和描述的元件的特定形状，而是包括例如从制造产生的形状偏差。按照示例的方式，示出或描述为在其边缘具有圆形或曲线特征的元件可以替代为具有直线边缘。因此，在附图中示出的元件实质是示意性的，并且他们的形状并非旨在说明元件的精确形状也并非旨在限制所述实施例的范围。
本文使用的词语“示例性的”意指用作示例、实例或例证。在本文被描述为“示例性的”的任何实施例不一定解释为比其他实施例优选或有利。同样，设备或方法的术语“实施例”不需要所有的实施例包括所述部件、结构、特征、功能、过程、优点、益处或操作模式。
如本文所使用的，后面跟随数值的术语“大约”意指在提供的数值的工程容差内。
在下列具体实施方式中，本发明的各个方面将在波导与用于在磁存储盘上的热辅助磁记录的近场换能器之间的接口的背景下陈述。
图1示出硬盘驱动器111，其包括盘驱动器基座114、至少一个可旋转存储盘113(例如，诸如磁盘、磁光盘)以及用于旋转盘113的附接于基座114的枢轴电机116。枢轴电机116通常包括旋转毂，一个或多个盘113、附接于该毂的磁体以及定子，该一个或多个盘113可以在该旋转毂上被安装并夹紧。至少一个悬浮臂108支持至少一个磁头万向架组件(HGA)112，该HGA112保持具有写入头和读出头的磁头组件的滑块(slider)。斜坡组件100被附连到基座114，并在HGA112停留时(即，当写入头和读出头空闲时)提供用于悬浮臂108的尖端驻留的表面。在盘驱动器111的记录操作期间，悬浮臂108在枢轴117处旋转，从斜坡组件100分离，并将HGA112的位置移动到旋转存储盘113上的预期信息轨上。在记录期间，滑块由HGA112利用面向旋转存储盘113的滑块的空气支承面悬浮，从而允许写入头磁改变存储位的状态。至于热辅助磁记录，在空气支承面上的近场换能器(NFT)可以耦合来自波导的光能，以便在旋转存储盘113上产生用于磁软化位空间的加热点。
图2示出NFT200的示例性实施例的示意图，其中NFT200被布置在携带磁头组件的滑块的空气支承面(ABS)210上。ABS210是面向存储盘113的滑块表面。在滑块飞越存储盘113上方时，气垫被保持在滑块ABS210与存储盘113的表面之间。如图所示，两个介质波导(WG)芯211、212中被布置为每个均携带光能到NFT200。可以通过TE激光二极管源(未示出)生成光能，其中TE激光二极管源可以通过分隔器(未示出)分成两半。介质波导芯211、212可以是相等长度以确保在ABS210的组合能量波处于相长干涉(constructiveinterference)的实质性相位对准并且对存储盘113的最大能量发射。可替换地，介质波导芯211、212可以是不相等长度，使得入射能量波可以具有在ABS210处优化相长干涉和最大能量幅值的特定相差。两个波导芯211、212可以是基本线性的，并在0度与180度之间的内角(例如，如图2所示约90度)处收敛于接近ABS210的结点(junction)。波导芯的介质材料可以是例如Ta2O5。
如图2中的横截面所示，NFT包括等离子金属条元件202，该金属条元件可以在纵向方向布置在波导芯212上方，其中等离子金属条202的中心线沿波导芯212表面的中心线基本对准。同样，等离子金属条201可以如图2所示被布置在波导芯211上方。来自接近等离子金属条201、202的介质波导芯211、212的光能朝着ABS210沿等离子金属条201、202表面的传播表面等离子体极化激元(propagatingsurfaceplasmonpolariton)(PSPP)励磁。因此，每个等离子金属条元件201、202可以作用为PSPP元件。如截面图所示，可以在等离子金属条201、202与介质波导芯211、212之间存在间隙(例如，约20nm)。可替换地，该间隙可以被省略，并且等离子金属条201、202或等离子金属条201、202的至少一部分可以直接接触介质波导芯211、212。两个介质波导芯211、212和整个NFT200可以通过氧化硅材料来密封。等离子金属条201、202的材料可以是例如金合金。可以用于形成等离子金属条201、202的等离子金属的其他示例包括银或铜合金。
等离子金属条元件201、202可以被配置为如图2所示，收敛于在介质波导芯211、212的结点上方的结点。等离子金属条元件201、202的结点可以出现在公用平面上，或可以通过将一个元件重叠在另一元件上方来形成。等离子金属条元件201、202的结点可以被形成在ABS210处。例如，NFT能量输出发射器可以通过在ABS210处的裸露金属条结点而被形成在ABS210处，最大能量从该结点被传播经过气垫并传播到存储盘113的表面上。发射器的物理尺寸(即，裸露的等离子金属条结点的裸露的等离子金属条结点的宽度)可以基本相当于在盘113的表面上的聚焦的加热点的大小。加热点的目标大小取决于滑块在磁道上方飞越经过时的磁道大小，该磁道大小可以是例如约10-70nm宽。加热点的大小也取决于ABS210与盘113之间的距离。加热点的焦点可以通过最小化间隙距离减来优化。
等离子金属条201、202可以在如图2所示的接收光能的第一端处逐渐变窄(tapered)，使得在TE介质波导模式中光能的电场可以朝ABS210以z轴方向传播到等离子金属。等离子金属条201、202的宽度在等离子金属条201、202的一个侧面上以倾斜边缘并在等离子金属条201、202的相对侧面上以基本线性边缘而逐渐变窄。用于说明目的，倾斜边缘在图2中被示为外边缘。然而，等离子金属条201、202可以以其他变型被配置为包括倾斜的内边缘、具有倾斜的内边缘的等离子金属条201、202中的一个和具有倾斜外边缘的等离子金属条201、202中的其他。通过这种逐渐变窄构造，等离子金属条201、202可以同时用作消逝耦合器(evanescentcoupler)和用作偏振转换器，该等离子金属条201、202将TE介质波导芯211、212的光功率输出输送到等离子金属条201、202中。当工作在介质波导的TE模式中时，在波导芯上方的电场在x轴分量最强并且在z轴分量最弱。在光能传播到z轴方向中时，等离子金属条201、202中的渐缩(tapering)被配置为用于以x轴方向转换(或旋转)电场。在能量波达到等离子金属条的固定宽度(未变窄)部分时，激励(excited)的PSPP可以围绕在倾斜边缘的角落有效旋转，将某些能量幅值从x方向传送到z方向。作为示例，通过波长范围为770-880nm以及550nm宽和120nm厚的波导的TE激光，等离子金属条201、202的渐缩尺寸可以在其逐渐变窄部具有约2.5微米的长度以及直线部可以是约550nm宽和2.0微米长。
等离子金属条元件201、202在其最宽部的宽度可以基本相当于介质波导芯211、212的宽度。可替换地，等离子金属条元件201、202在其最宽部的宽度可以比介质波导芯211、212的宽度稍微更宽或稍窄。在实施例中，等离子金属条201、202的宽度可以是在存储盘113上生成的加热点的宽度的至少两倍。在另一实施例中，等离子金属条201、202的宽度可以是在存储盘113上生成的加热点的宽度的至少三倍至六倍。
为实现加热点宽度的所需的聚焦的同时使用更宽的等离子金属条，NFT200可以被配置为具有一个或多个下列特征。发射器可以被配置为使得裸露等离子金属的宽度基本相当于加热点预期宽度。发射器宽度可以通过搭接(lapping)ABS210来控制，直到裸露等离子金属条的结点的宽度尺寸在可接受范围内。而且，NFT210可以被配置为具有不等长度的PSPP元件201、202，从而在ABS210处产生为加热点给出预期聚焦宽度的相长干涉。
在由波导系统中的公用总输入功率驱动时，与垂直于ABS210布置的单PSPP元件的构造相比，如图2所示的两个PSPP元件构造可以提供约两倍的电场幅值。由两个PSPP元件201、202产生的相长干涉允许提高来自激光二极管源的能量输送效率，这转化为EAMR/HAMR装置的更长使用寿命。
NFT200实施例不必局限于如图2所示的两个干涉(interfering)PSPP元件201、202。在替代实施例中，N个(正整数)PSPP元件在ABS210处干涉，在由波导系统中的公用总输入功率驱动时，该N个PSPP元件可以提供电场幅值的约N倍增加。N值可以增加超过2或3，直到在EAMR头的三维布局内的其他寄生干涉变成极限因数。对于N>3，PSPP元件可以被布置在三维构造中(即，不是所有的NPT必须存在于公用的二维平面中)。
图3示出是NFT200的变型的NFT300的示例性实施例，其不同之处在于，与只在其长度的一部分逐渐变窄的PSPP元件201、202相比，PSPP元件301、302在其整个长度逐渐变窄。PSPP元件301、302可以以与上面关于NFT200所述类似的方式布置在介质波导芯311/312上方。
图4示出NFT400的示例性实施例，其是图2的示例性实施例的变型，两者不同之处在于在NFT400中添加等离子金属帽405。用于写入头的磁杆407可以与等离子金属帽405集成，并且在两者之间可以布置薄的扩散阻挡层408以阻止在该磁杆的黑色(ferrous)金属材料与等离子金属帽405的合金材料之间的扩散。等离子金属帽405充当散热片和磁杆407的光块。在替代实施例中，杆407可以从ABS410凹进。
如图4所示，等离子金属帽405可以被配置为具有与ABS410基本对准的直边的半圆。金属帽的大小可以是例如直径为1000nm。等离子金属帽405的厚度不是不是实现精确纳米大小加热点的重要因素，因此，该厚度可以根据提供用于控制NFT400的峰值温度的充分热传递来构造。作为示例，等离子金属帽405可以在厚度上大于30nm。金属帽405可以以不同于半圆形的形状构造，诸如矩形或多边形。等离子金属条元件401、402可以耦合在上面的等离子金属帽405。用于说明目的，等离子金属元件405被描绘为透明揭示在下面的金属条401、402。如截面图所示，可以在等离子金属条401、402与介质波导芯411、412之间存在间隙(例如，约20nm)。可替换地，该间隙可以被省略，并且等离子金属条401、402或等离子金属条401、402的至少一部分可以直接接触介质波导芯411、412。两个介质波导芯411、412和整个NFT400可以通过氧化硅材料来密封。等离子金属帽405的材料可以是例如金合金。可以用于形成等离子金属帽405的等离子金属的其他示例包括银或铜合金。
图5示出NFT500的示例性实施例的示意图，该NFT具有基本垂直于ABS113布置在纵向方向的介质波导芯511上面的单等离子金属条501。这个实施例的NFT500是图2所示的NFT200的变型，除了单PSPP元件501被布置在该NFT中以外。等离子金属条501类似于等离子金属条201是倾斜的，以在从波导芯接收光能的一端形成逐渐变窄的宽度。
图6示出如图5所示的NFT的示例性实施例的变型的示意图。对于如图6所示的NFT600，等离子金属条601的一部分的两个侧面可以被倾斜以形成逐渐变窄的端部。渐缩的尺寸控制电场能量在ABS610处的等离子金属条的侧边缘的聚焦，使得电场的宽度基本等于记录介质上的所需加热点宽度(例如，10-70nm)。等离子金属条601的形状和构造也可以被实施为如图2所示的两个PSPP元件NFT或如上所述具有N个PSPP元件的NFT。
图7示出NFT700的示例性实施例的示意图，该NFT具有与TE波导芯对准并基本垂直于ABS710的单PSPP元件。PSPP元件701的纵长部分延伸超过介质波导711的朝向面的周长(即，顶部表面边缘)。如图7所述，PSPP元件701的中心线可以从TE波导芯711的中心线720被偏移。由于TE波导芯中的电场的z轴分量在TE波导芯的侧边(即，z轴投射到与中心线720对准的波导芯中的地方)最强，使得等离子金属条701的一部分(即，延伸超出TE波导芯的边缘的部分)裸露于波导芯711的侧边721，从而增强电场的捕获和耦合。等离子金属条701的形状和构造也可以被实施为如图2所示的两个PSPP元件NFT或如上所述具有N个PSPP元件的NFT。
图8示出组合关于如图2-6所示的实施例所述的逐渐变窄效应和关于如图7所示的实施例所述的偏移效应的NFT800的示例性实施例的示意图。如图8所示，等离子金属条801相对于下面的波导芯811的中心线820是纵向歪斜的，使得侧边822在纵向方向相对于波导芯811的中心线820是倾斜的。而且，某些等离子金属条元件801延伸超过波导芯811的侧边821，使得等离子金属条801裸露于电场的最强z轴分量所驻留的TE波导芯811的区域。等离子金属条801的形状和构造也可以被实施为如图2所示的两个PSPP元件NFT或如上所述具有N个PSPP元件的NFT。
上述的实施例采用具有健壮宽度的等离子金属条，与用在典型EAMR/HAMR装置中尺寸小的多的等离子元件相比，该等离子金属条更能承受恶劣的服务责任条款的同时仍然能够提供存储盘表面所需的加热点的精确聚焦。等离子金属条被配置为在TE模式中与介质波导芯接口的PSPP元件。
所提供的本公开的各个方面允许本领域的一个普通技术人员能够实践本发明。对于本领域的技术人员来说，对整个本公开陈述的示例性实施例进行各种更改并且本文公开的原理可以推广到其他装置是显而易见的。因此，不是为了将权利要求限制在本公开的各个方面，而是赋予与本权利要求的语言一致的全部范围。在整个本公开描述的示例性实施例的本领域的普通技术人员现在已知或后来已知的各种部件的所有结构和功能等效物通过引用明确并入本文并包含在权利要求中。而且，本文并非旨在公开专用于公众的特征，而不管此类公开是否在权利要求中明确引用。权利要求要素不应在35U.S.C.§112(f)的条款下被解释，除非该要素使用短语“用于...的装置”来明确引用，或在方法权利要求的情况下，该要素使用短语“用于...的步骤”来引用。
Claims (12)
1.一种用于存储盘的能量辅助磁记录的设备，其包括：
工作在横向电模式即TE模式中的多个介质波导芯，所述多个介质波导芯被配置为从能量源接收入射光能并将所述入射光能引导至目标；以及
近场换能器，所述近场换能器形成在空气支承面处并被配置为将从所述多个波导芯接收的光能聚焦并且将聚焦的光能传送到所述存储盘表面上，以便在所述存储盘上生成加热点，所述近场换能器包括：
多个传播表面等离子体极化激元元件即PSPP元件，所述PSPP元件通过来自所述波导芯的光能被励磁，其中所述PSPP元件中的每个包括与所述波导芯纵向对准的布置在单波导芯表面上方的等离子金属条，每个金属条具有接收来自所述波导芯的光能的第一端和裸露于所述空气支承面的第二端，其中每个金属条的宽度朝所述第一端逐渐变窄。
2.根据权利要求1所述的设备，其中沿所述PSPP元件的宽度的一个侧面是完全线性的并且与所述波导芯纵向对准，并且所述PSPP元件的相对的侧面的至少一部分是倾斜的以形成朝向所述第一端的渐缩。
3.根据权利要求1所述的设备，其中所述PSPP元件的两个侧面的至少一部分是倾斜的以形成朝向所述第一端的渐缩。
4.根据权利要求1所述的设备，其中所述多个等离子金属条中的每个与相应波导芯的对应表面之间存在间隙。
5.根据权利要求1所述的设备，其中：
所述波导芯中的每个和对应的PSPP元件是基本线性的并且包括第一端和第二端，
所有PSPP元件的第二端在接近所述空气支承面的结点与裸露在所述空气支承面上的结点的至少一部分连接在一起。
6.根据权利要求3所述的设备，其中所述多个波导芯和对应的PSPP元件相对于所述空气支承面被配置在三维布局中。
7.根据权利要求1所述的设备，其中所述多个PSPP元件在所述目标提供所述入射光能的相长干涉。
8.根据权利要求1所述的设备，还包括布置在所述等离子金属条上方并耦合至所述等离子金属条的等离子金属帽。
9.根据权利要求6所述的设备，还包括布置在所述等离子帽上面的磁杆。
10.一种用于存储盘的能量辅助磁记录的设备，其包括：
工作在横向电模式即TE模式中的多个介质波导芯，所述多个介质波导芯被配置为从能量源接收入射光能并将所述入射光能引导至目标；以及
近场换能器，所述近场换能器在空气支承面形成并被配置为将从所述多个波导芯接收的光能聚焦并且将聚焦的光能传送到所述存储盘表面上,以便在所述存储盘上生成加热点，所述近场换能器包括：
多个传播表面等离子体极化激元元件即PSPP元件，所述PSPP元件通过来自所述波导芯的光能被励磁，其中所述PSPP元件中的每个包括与所述波导芯纵向对准的布置在单波导芯表面上方的等离子金属条，每个金属条具有接收来自所述波导芯的光能的第一端和裸露于所述空气支承面的第二端，每个金属条被布置为一部分延伸超过面向所述金属条的所述波导的表面的周长。
11.一种用于存储盘的能量辅助磁记录的设备，其包括：
工作在横向电模式即TE模式中的多个介质波导芯，所述多个介质波导芯被配置为从能量源接收入射光能并将所述入射光能引导至目标；以及
近场换能器，所述近场换能器在空气支承面形成并被配置为将从所述多个波导芯接收的光能聚焦和将聚焦光能传送到所述存储盘表面上以在所述存储盘上生成加热点，所述近场换能器包括：
多个传播表面等离子体极化激元元件即PSPP元件，所述PSPP元件通过来自所述波导芯的光能被励磁，其中所述PSPP元件中的每个包括与所述波导芯纵向不对准的布置在单波导芯表面上方的等离子金属条，每个金属条具有接收来自所述波导芯的光能的第一端和裸露于所述空气支承面的第二端，每个金属条的一部分被布置为延伸超过面向所述金属条的所述波导的表面的周长。
12.一种磁存储盘驱动器，其包括：
可旋转存储盘；
激光二极管；
工作在横向电模式即TE模式中的多个介质波导芯，所述多个介质波导芯在接近磁记录装置的空气支承面的结点处耦合在一起，每个波导芯被配置为从所述激光二极管接收入射光能；以及
近场换能器，所述近场换能器在所述空气支承面形成用于聚焦从所述波导芯接收的光能并将聚焦光能传送到所述存储盘表面上以生成加热点，所述近场换能器包括：
多个传播表面等离子体极化激元元件即PSPP元件，所述PSPP元件通过来自所述波导芯的光能被励磁，其中所述PSPP元件中的每个包括沿单波导芯的表面的纵向中心线设置的等离子金属条，每个金属条具有第一端以及第二端，所述第一端具有逐渐变窄的宽度以用于接收来自所述波导芯的光能，所述第二端在所述空气支承面具有基本等于所述波导芯的宽度的固定宽度。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727057A (zh) * | 2018-07-17 | 2020-01-24 | 希捷科技有限公司 | 具有使来自波导的杂散光转向的特征的输入耦合器 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9263071B1 (en) | 2015-03-31 | 2016-02-16 | Western Digital (Fremont), Llc | Flat NFT for heat assisted magnetic recording |
Family Cites Families (554)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6078479A (en) | 1993-08-10 | 2000-06-20 | Read-Rite Corporation | Magnetic tape head with flux sensing element |
| US6219205B1 (en) | 1995-10-10 | 2001-04-17 | Read-Rite Corporation | High density giant magnetoresistive transducer with recessed sensor |
| US5801531A (en) | 1996-01-18 | 1998-09-01 | Read-Rite Corporation | Apparatus and method for testing magnetic heads using translational slides and a rotatable arm |
| JPH09235669A (ja) | 1996-02-27 | 1997-09-09 | Read Rite S M I Kk | 酸化膜の形成方法および電子デバイス |
| US5764451A (en) | 1996-03-28 | 1998-06-09 | Read-Rite Corporation | Multi-tapped coil having tapped segments casaded for amplification for improving signal-to-noise ratio |
| US5793550A (en) | 1996-04-23 | 1998-08-11 | Read-Rite Corporation | Magnetoresistive head using sense currents of opposite polarities |
| US6103073A (en) | 1996-07-15 | 2000-08-15 | Read-Rite Corporation | Magnetic thin film head zero throat pole tip definition |
| US6034938A (en) | 1996-07-30 | 2000-03-07 | Seagate Technology, Inc. | Data storage system having an optical processing flying head |
| US6178150B1 (en) | 1996-07-30 | 2001-01-23 | Seagate Technology Inc. | Offset optics for use with optical heads |
| US6081499A (en) | 1997-05-05 | 2000-06-27 | Seagate Technology, Inc. | Magneto-optical data storage system having an optical-processing flying head |
| US6058094A (en) | 1996-07-30 | 2000-05-02 | Seagate Technology Inc. | Flying magneto-optical head with a steerable mirror |
| US5793279A (en) | 1996-08-26 | 1998-08-11 | Read-Rite Corporation | Methods and compositions for optimizing interfacial properties of magnetoresistive sensors |
| US6307715B1 (en) | 1996-08-30 | 2001-10-23 | Read-Rite Corporation | Head suspension having reduced torsional vibration |
| JPH10143820A (ja) | 1996-11-08 | 1998-05-29 | Read Rite S M I Kk | インダクティブ／ｍｒ複合型薄膜磁気ヘッド |
| JPH10188222A (ja) | 1996-12-20 | 1998-07-21 | Read Rite S M I Kk | 複合型薄膜磁気ヘッド |
| US5758406A (en) | 1997-02-07 | 1998-06-02 | Read-Rite Corporation | Method for assembling and electrical testing of a magnetic head |
| US6173486B1 (en) | 1997-03-04 | 2001-01-16 | Read-Rite Corporation | Thin film magnetic head with self-aligned pole tips |
| US5859754A (en) | 1997-04-03 | 1999-01-12 | Read-Rite Corporation | Magnetoresistive transducer having a common magnetic bias using assertive and complementary signals |
| US6032353A (en) | 1997-05-15 | 2000-03-07 | Read-Rite Corporation | Magnetic head with low stack height and self-aligned pole tips |
| JPH113510A (ja) | 1997-06-10 | 1999-01-06 | Read Rite S M I Kk | 複合型薄膜磁気ヘッド |
| US6166891A (en) | 1997-06-30 | 2000-12-26 | Read-Rite Corporation | Magnetoresistive sensor for high temperature environment using iridium manganese |
| US6775902B1 (en) | 1997-07-28 | 2004-08-17 | Western Digital (Fremont) Inc. | Method of making a magnetic head with aligned pole tips |
| US5966800A (en) | 1997-07-28 | 1999-10-19 | Read-Rite Corporation | Method of making a magnetic head with aligned pole tips and pole layers formed of high magnetic moment material |
| US5966591A (en) | 1997-08-07 | 1999-10-12 | Read-Rite Corporation | Method and tool for handling micro-mechanical structures |
| US6073338A (en) | 1997-08-19 | 2000-06-13 | Read-Rite Corporation | Thin film read head with coplanar pole tips |
| US6188549B1 (en) | 1997-12-10 | 2001-02-13 | Read-Rite Corporation | Magnetoresistive read/write head with high-performance gap layers |
| US6275354B1 (en) | 1998-01-21 | 2001-08-14 | Read-Rite Corporation | Magnetic head with a toroidal coil encompassing only one yoke layer |
| US5996213A (en) | 1998-01-30 | 1999-12-07 | Read-Rite Corporation | Thin film MR head and method of making wherein pole trim takes place at the wafer level |
| US6108166A (en) | 1998-03-12 | 2000-08-22 | Read-Rite Corporation | Current-pinned spin valve sensor |
| US6043959A (en) | 1998-03-23 | 2000-03-28 | Read-Rite Corporation | Inductive write head formed with flat yoke and merged with magnetoresistive read transducer |
| US6136166A (en) | 1998-03-27 | 2000-10-24 | Read-Rite Corporation | Apparatus for producing a uniform magnetic field over a large surface area of a wafer |
| US6046885A (en) | 1998-04-03 | 2000-04-04 | Intri-Plex Technologies, Inc. | Base plate suspension assembly in a hard disk drive with step in flange |
| US6399179B1 (en) | 1998-04-03 | 2002-06-04 | Intri-Plex Technologies, Inc. | Base plate for suspension assembly in hard disk drive with stress isolation |
| US6034851A (en) | 1998-04-07 | 2000-03-07 | Read-Rite Corporation | Shorting bar and test clip for protecting magnetic heads from damage caused by electrostatic discharge during manufacture |
| US6137662A (en) | 1998-04-07 | 2000-10-24 | Read-Rite Corporation | Magnetoresistive sensor with pinned SAL |
| US6049650A (en) | 1998-04-17 | 2000-04-11 | Seagate Technology, Inc. | Structure for micro-machine optical tooling and method for making and using |
| US6055138A (en) | 1998-05-06 | 2000-04-25 | Read-Rite Corporation | Thin film pedestal pole tips write head having narrower lower pedestal pole tip |
| US6178066B1 (en) | 1998-05-27 | 2001-01-23 | Read-Rite Corporation | Method of fabricating an improved thin film device having a small element with well defined corners |
| JPH11354859A (ja) | 1998-06-05 | 1999-12-24 | Read Rite Smi Kk | 磁気抵抗素子と磁気ヘッド |
| US6018441A (en) | 1998-06-08 | 2000-01-25 | Read-Rite Corporation | Disk drive pivot bearing and actuator arm assembly |
| JPH11354860A (ja) | 1998-06-10 | 1999-12-24 | Read Rite Smi Kk | スピンバルブ磁気変換素子及び磁気ヘッド |
| US6377535B1 (en) | 1998-07-06 | 2002-04-23 | Read-Rite Corporation | High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systems |
| US6229782B1 (en) | 1998-07-06 | 2001-05-08 | Read-Rite Corporation | High numerical aperture optical focusing device for use in data storage systems |
| US6212153B1 (en) | 1998-07-06 | 2001-04-03 | Read-Rite Corporation | High NA solid catadioptric focusing device having a flat kinoform phase profile |
| US6130779A (en) | 1998-07-06 | 2000-10-10 | Read-Rite Corporation | Near field magneto-optical head made using wafer processing techniques |
| US6175476B1 (en) | 1998-08-18 | 2001-01-16 | Read-Rite Corporation | Synthetic spin-valve device having high resistivity anti parallel coupling layer |
| US6445536B1 (en) | 1998-08-27 | 2002-09-03 | Read-Rite Corporation | Dielectric stencil-defined write head for MR, GMR, and spin valve high density recording heads |
| JP2000091667A (ja) | 1998-09-09 | 2000-03-31 | Read Rite Smi Kk | スピンバルブ磁気抵抗センサ及び薄膜磁気ヘッド |
| US6181525B1 (en) | 1998-09-23 | 2001-01-30 | Read-Rite Corporation | Read/write head with a limited range of motion relative to a load beam |
| JP2000113437A (ja) | 1998-10-08 | 2000-04-21 | Read Rite Smi Kk | 磁気ヘッド装置の製造方法、磁気ヘッド装置、並びに、磁気ヘッド装置の中間製造物 |
| US6330136B1 (en) | 1998-10-14 | 2001-12-11 | Read-Rite Corporation | Magnetic read sensor with SDT tri-layer and method for making same |
| US6137661A (en) | 1998-10-19 | 2000-10-24 | Read-Rite Corporation | System for providing a magnetoresistive head having higher efficiency |
| US6252743B1 (en) | 1998-11-02 | 2001-06-26 | Read-Rite Corporation | Read/write positioning arm with interspaced amplifier chips |
| US6118638A (en) | 1998-11-02 | 2000-09-12 | Read-Rite Corporation | CPP magnetoresistive device and method for making same |
| US6333830B2 (en) | 1998-11-09 | 2001-12-25 | Read-Rite Corporation | Low resistance coil structure for high speed writer |
| US6198609B1 (en) | 1998-11-09 | 2001-03-06 | Read-Rite Corporation | CPP Magnetoresistive device with reduced edge effect and method for making same |
| JP2000149233A (ja) | 1998-11-11 | 2000-05-30 | Read Rite Smi Kk | 磁気ヘッド装置、並びに、その製造方法 |
| US6160684A (en) | 1998-11-12 | 2000-12-12 | Read-Rite Corporation | Head suspension having tabs and force isolation welds for gram load reduction during swaging |
| US6233116B1 (en) | 1998-11-13 | 2001-05-15 | Read-Rite Corporation | Thin film write head with improved laminated flux carrying structure and method of fabrication |
| US6452765B1 (en) | 1998-11-18 | 2002-09-17 | Read-Rite Corporation | CoNbTi as high resistivity SAL material for high-density MR |
| US6221218B1 (en) | 1998-11-23 | 2001-04-24 | Read-Rite Corporation | Method of forming an inductive write head for magnetic data storage media |
| US6190764B1 (en) | 1998-11-23 | 2001-02-20 | Read-Rite Corporation | Inductive write head for magnetic data storage media |
| JP2000163713A (ja) | 1998-11-27 | 2000-06-16 | Read Rite Smi Kk | 薄膜磁気ヘッドの上部磁極層の形成方法、段差を有する表面の段差底部上に高アスペクト比微細ブロックパターンを形成する方法、並びに、薄膜磁気ヘッド |
| US6633464B2 (en) | 1998-12-09 | 2003-10-14 | Read-Rite Corporation | Synthetic antiferromagnetic pinned layer with Fe/FeSi/Fe system |
| US6025988A (en) | 1998-12-17 | 2000-02-15 | Read-Rite Corporation | Interconnect adapter and head suspension assembly |
| US6258468B1 (en) | 1998-12-22 | 2001-07-10 | Read-Rite Corporation | AMR read sensor structure and method with high magnetoresistive coefficient |
| US6462920B1 (en) | 1998-12-23 | 2002-10-08 | Read-Rite Corporation | Method and system for reducing MR head instability |
| US6204999B1 (en) | 1998-12-23 | 2001-03-20 | Read-Rite Corporation | Method and system for providing a write head having a conforming pole structure |
| US6222707B1 (en) | 1998-12-28 | 2001-04-24 | Read-Rite Corporation | Bottom or dual spin valve having a seed layer that results in an improved antiferromagnetic layer |
| US6215625B1 (en) | 1999-01-04 | 2001-04-10 | Read-Rite Corporation | Apparatus and method for adhesive bridge suspension attachment |
| US6185077B1 (en) | 1999-01-06 | 2001-02-06 | Read-Rite Corporation | Spin valve sensor with antiferromagnetic and magnetostatically coupled pinning structure |
| JP2000207714A (ja) | 1999-01-13 | 2000-07-28 | Read Rite Smi Kk | 磁気抵抗効果型薄膜磁気ヘッド、並びに、その製造方法 |
| US6418000B1 (en) | 1999-01-21 | 2002-07-09 | Read-Rite Corporation | Dual, synthetic spin valve sensor using current pinning |
| US6094803A (en) | 1999-01-21 | 2000-08-01 | Read-Rite Corporation | Wafer processing techniques for near field magneto-optical head |
| US6277505B1 (en) | 1999-01-21 | 2001-08-21 | Read-Rite Corporation | Read sensor with improved thermal stability and manufacturing method therefor |
| JP2000222709A (ja) | 1999-02-01 | 2000-08-11 | Read Rite Smi Kk | スピンバルブ磁気抵抗センサ及び薄膜磁気ヘッド |
| US6351355B1 (en) | 1999-02-09 | 2002-02-26 | Read-Rite Corporation | Spin valve device with improved thermal stability |
| US6801411B1 (en) | 1999-02-10 | 2004-10-05 | Western Digital (Fremont), Inc. | Dual stripe spin valve sensor without antiferromagnetic pinning layer |
| US6629357B1 (en) | 1999-02-10 | 2003-10-07 | Read-Rite Smi Corp. | Method of magnetic head manufacture |
| US6178070B1 (en) | 1999-02-11 | 2001-01-23 | Read-Rite Corporation | Magnetic write head and method for making same |
| US6016290A (en) | 1999-02-12 | 2000-01-18 | Read-Rite Corporation | Read/write head with shifted waveguide |
| US6404706B1 (en) | 1999-02-12 | 2002-06-11 | Read-Rite Corporation | Laser mounting for a thermally assisted GMR head |
| JP2000251223A (ja) | 1999-02-23 | 2000-09-14 | Read Rite Smi Kk | スピンバルブ磁気抵抗センサ及び薄膜磁気ヘッド |
| US6134089A (en) | 1999-03-11 | 2000-10-17 | Read-Rite Corporation | Current perpendicular to plane magnetoresistive device with low resistance lead |
| US6765756B1 (en) | 1999-03-12 | 2004-07-20 | Western Digital (Fremont), Inc. | Ultra-short yoke and ultra-low stack height writer and method of fabrication |
| US6691226B1 (en) | 1999-03-16 | 2004-02-10 | Western Digital Ventures, Inc. | Computer system with disk drive having private key validation means for enabling features |
| US6532823B1 (en) | 1999-03-18 | 2003-03-18 | Read-Rite Corporation | Insulator layers for magnetoresistive transducers |
| US6198608B1 (en) | 1999-03-18 | 2001-03-06 | Read-Rite Corporation | MR sensor with blunt contiguous junction and slow-milling-rate read gap |
| US6417998B1 (en) | 1999-03-23 | 2002-07-09 | Read-Rite Corporation | Ultra small advanced write transducer and method for making same |
| US6297955B1 (en) | 1999-03-31 | 2001-10-02 | Western Digital Ventures, Inc. | Host assembly for an integrated computer module |
| US6411522B1 (en) | 1999-04-01 | 2002-06-25 | Western Digital Ventures, Inc. | Integrated computer module with EMI shielding plate |
| US6445553B2 (en) | 1999-04-02 | 2002-09-03 | Read-Rite Corporation | Method and system for fabricating a high density magnetoresistive device |
| US6201673B1 (en) | 1999-04-02 | 2001-03-13 | Read-Rite Corporation | System for biasing a synthetic free layer in a magnetoresistance sensor |
| US6359779B1 (en) | 1999-04-05 | 2002-03-19 | Western Digital Ventures, Inc. | Integrated computer module with airflow accelerator |
| US6282056B1 (en) | 1999-04-08 | 2001-08-28 | Read-Rite Corporation | Tapered stitch pole writer for high density magnetic recording |
| US6657816B1 (en) | 1999-04-09 | 2003-12-02 | Ronald A. Barr | Thin film inductive read/write head with a sloped pole |
| US6490125B1 (en) | 1999-04-09 | 2002-12-03 | Read-Rite Corporation | Thin film write head with improved yoke to pole stitch |
| US6654195B1 (en) | 1999-04-27 | 2003-11-25 | Western Digital Ventures, Inc. | Disk drive having a register set for providing real time position variables to a host |
| US6829819B1 (en) | 1999-05-03 | 2004-12-14 | Western Digital (Fremont), Inc. | Method of forming a magnetoresistive device |
| US6944938B1 (en) | 1999-05-03 | 2005-09-20 | Western Digital (Fremont), Inc. | Method of forming a magnetoresistive device |
| US6424505B1 (en) | 1999-05-06 | 2002-07-23 | Read-Rite Corporation | Method and system for providing electrostatic discharge protection for flex-on suspension, trace-suspension assembly, or cable-on suspension |
| JP2000315302A (ja) | 1999-05-06 | 2000-11-14 | Read Rite Smi Kk | 複合型薄膜磁気ヘッド |
| US6271604B1 (en) | 1999-05-10 | 2001-08-07 | Western Digital Corporation | Integrated computer module having a data integrity latch |
| US6349014B1 (en) | 1999-05-14 | 2002-02-19 | Read-Rite Corporation | Magnetic read/write device with insulated coil layer recessed into pole |
| US6410170B1 (en) | 1999-05-20 | 2002-06-25 | Read-Rite Corporation | High resistivity FeXN sputtered films for magnetic storage devices and method of fabrication |
| US6296955B1 (en) | 1999-05-24 | 2001-10-02 | Read-Rite Corporation | High moment and high permeability transducer structures and formation |
| US6400526B2 (en) | 1999-05-26 | 2002-06-04 | Read-Rite Corporation | Advanced writer for chip-on-load beam |
| US6193584B1 (en) | 1999-05-27 | 2001-02-27 | Read-Rite Corporation | Apparatus and method of device stripe height control |
| US6466401B1 (en) | 1999-06-02 | 2002-10-15 | Read-Rite Corporation | Thin film write head with interlaced coil winding and method of fabrication |
| US6762910B1 (en) | 1999-06-03 | 2004-07-13 | Western Digital (Fremont), Inc. | Data storage and retrieval apparatus with thin film read head having inset extra gap insulation layer and method of fabrication |
| US6433970B1 (en) | 1999-06-07 | 2002-08-13 | Read-Rite Corporation | Structure and method for redeposition free thin film CPP read sensor fabrication |
| US6389499B1 (en) | 1999-06-09 | 2002-05-14 | Western Digital Ventures, Inc. | Integrated computer module |
| US6330137B1 (en) | 1999-06-11 | 2001-12-11 | Read-Rite Corporation | Magnetoresistive read sensor including a carbon barrier layer and method for making same |
| US6469877B1 (en) | 1999-06-15 | 2002-10-22 | Read-Rite Corporation | Spin valve device with improved exchange layer defined track width and method of fabrication |
| US6353511B1 (en) | 1999-06-15 | 2002-03-05 | Read-Rite Corporation | Thin film write head for improved high speed and high density recording |
| US6466402B1 (en) | 1999-06-18 | 2002-10-15 | Read-Rite Corporation | Compact MR write structure |
| US6310746B1 (en) | 1999-06-23 | 2001-10-30 | Read-Rite Corporation | Piezoelectric vibration damping for disk drives |
| US6181485B1 (en) | 1999-06-23 | 2001-01-30 | Read-Rite Corporation | High numerical aperture optical focusing device for use in data storage systems |
| US6185051B1 (en) | 1999-06-23 | 2001-02-06 | Read-Rite Corporation | High numerical aperture optical focusing device for use in data storage systems |
| US6185081B1 (en) | 1999-06-30 | 2001-02-06 | Read-Rite Corporation | Bias layers which are formed on underlayers promoting in-plane alignment of the c-axis of cobalt used in magnetoresistive transducers |
| US7027268B1 (en) | 1999-07-08 | 2006-04-11 | Western Digital (Fremont), Inc. | Method and system for providing a dual spin filter |
| US6687098B1 (en) | 1999-07-08 | 2004-02-03 | Western Digital (Fremont), Inc. | Top spin valve with improved seed layer |
| US6483662B1 (en) | 1999-07-09 | 2002-11-19 | Read-Rite Corporation | High density multi-coil magnetic write head having a reduced yoke length and short flux rise time |
| US7196880B1 (en) | 1999-07-19 | 2007-03-27 | Western Digital (Fremont), Inc. | Spin valve sensor having a nonmagnetic enhancement layer adjacent an ultra thin free layer |
| US6304414B1 (en) | 1999-07-20 | 2001-10-16 | Read-Rite Corporation | Thin film magnetic write head having an ultra-low stack height |
| US6611398B1 (en) | 1999-08-09 | 2003-08-26 | Quantum Corporation | Tape head with support bars |
| US6369983B1 (en) | 1999-08-13 | 2002-04-09 | Read-Rite Corporation | Write head having a dry-etchable antireflective intermediate layer |
| US6396660B1 (en) | 1999-08-23 | 2002-05-28 | Read-Rite Corporation | Magnetic write element having a thermally dissipative structure |
| US6317290B1 (en) | 1999-08-31 | 2001-11-13 | Read-Rite Corporation | Advance pole trim writer with moment P1 and low apex angle |
| US6381095B1 (en) | 1999-08-31 | 2002-04-30 | Read-Rite Corporation | High performance thin film magnetic write element having high Bsat poles and method for making same |
| US6452742B1 (en) | 1999-09-02 | 2002-09-17 | Read-Rite Corporation | Thin film write having reduced resistance conductor coil partially recessed within middle coat insulation |
| US6496330B1 (en) | 1999-09-09 | 2002-12-17 | Read-Rite Corporation | Magnetic write head having a splitcoil structure |
| US6421212B1 (en) | 1999-09-21 | 2002-07-16 | Read-Rite Corporation | Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication |
| US6356412B1 (en) | 1999-09-30 | 2002-03-12 | Read-Rite Corporation | Air bearing facilitating load/unload of a magnetic read/write head |
| US6317297B1 (en) | 1999-10-06 | 2001-11-13 | Read-Rite Corporation | Current pinned dual spin valve with synthetic pinned layers |
| US6310750B1 (en) | 1999-10-20 | 2001-10-30 | Read-Rite Corporation | Disk drive actuator arm with microactuated read/write head positioning |
| US6381105B1 (en) | 1999-10-22 | 2002-04-30 | Read-Rite Corporation | Hybrid dual spin valve sensor and method for making same |
| US6448765B1 (en) | 1999-10-28 | 2002-09-10 | Read-Rite Corporation | Microscopic tips having stable magnetic moments and disposed on cantilevers for sensing magnetic characteristics of adjacent structures |
| JP2001126219A (ja) | 1999-10-28 | 2001-05-11 | Read Rite Corp | スピンバルブ型磁気抵抗センサ及び薄膜磁気ヘッド |
| US6456465B1 (en) | 1999-11-09 | 2002-09-24 | Read-Rite Corporation | Vertical giant magnetoresistance sensor using a recessed shield |
| US6661621B1 (en) | 1999-11-19 | 2003-12-09 | Read-Rite Smi Corp. | Compound thin film magnetic head |
| US6447935B1 (en) | 1999-11-23 | 2002-09-10 | Read-Rite Corporation | Method and system for reducing assymetry in a spin valve having a synthetic pinned layer |
| US6479096B1 (en) | 1999-12-03 | 2002-11-12 | Read-Rite Corporation | Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layers |
| US6650506B1 (en) | 1999-12-15 | 2003-11-18 | Patrick Risse | Double-sided disk storage using a single configuration of magnetoresistive head |
| US6437945B1 (en) | 1999-12-28 | 2002-08-20 | Read-Rite Corporation | Airflow assisted ramp loading and unloading of sliders in hard disk drives |
| US7046490B1 (en) | 2000-01-06 | 2006-05-16 | Western Digital (Fremont), Inc. | Spin valve magnetoresistance sensor and thin film magnetic head |
| US6404601B1 (en) | 2000-01-25 | 2002-06-11 | Read-Rite Corporation | Merged write head with magnetically isolated poletip |
| US6417999B1 (en) | 2000-02-04 | 2002-07-09 | Read-Rite Corporation | Magnetoresistive head stabilized structure and method of fabrication thereof |
| US7023658B1 (en) | 2000-02-08 | 2006-04-04 | Western Digital (Fremont), Inc. | Submicron track-width pole-tips for electromagnetic transducers |
| US6721149B1 (en) | 2000-02-11 | 2004-04-13 | Western Digital (Fremont), Inc. | Tunneling magnetoresistance spin-valve read sensor with LaNiO3 spacer |
| US6724569B1 (en) | 2000-02-16 | 2004-04-20 | Western Digital (Fremont), Inc. | Thin film writer with multiplayer write gap |
| US6433965B1 (en) | 2000-03-02 | 2002-08-13 | Read-Rite Corporation | Laminated carbon-containing overcoats for information storage system transducers |
| US6445542B1 (en) | 2000-03-06 | 2002-09-03 | Read-Rite Corporation | Air bearing slider |
| US7059868B1 (en) | 2000-03-07 | 2006-06-13 | Western Digital (Fremont), Inc. | Connection of trace circuitry in a computer disk drive system |
| US6353318B1 (en) | 2000-03-10 | 2002-03-05 | Read-Rite Corporation | Magnetoresistive sensor having hard biased current perpendicular to the plane sensor |
| US6445554B1 (en) | 2000-03-10 | 2002-09-03 | Read-Rite Corporation | Method and system for providing edge-junction TMR for high areal density magnetic recording |
| JP2001308411A (ja) | 2000-04-11 | 2001-11-02 | Read Rite Corp | スピンバルブ型磁気抵抗センサおよび薄膜磁気ヘッド |
| US6433968B1 (en) | 2000-05-02 | 2002-08-13 | Read-Rite Corporation | Merged read/write head and method of fabricating same |
| US6552874B1 (en) | 2000-05-17 | 2003-04-22 | Read-Rite Corporation | Shared pole magnetic read-write head for achieving optimized erase band width and method of fabricating the same |
| US6496334B1 (en) | 2000-05-26 | 2002-12-17 | Read-Rite Corportion | Data storage and retrieval apparatus with thin film read head having planarized extra gap and shield layers and method of fabrication thereof |
| US6700759B1 (en) | 2000-06-02 | 2004-03-02 | Western Digital (Fremont), Inc. | Narrow track width magnetoresistive sensor and method of making |
| US6674610B1 (en) | 2000-06-16 | 2004-01-06 | Western Digital (Fremont), Inc. | Thin film write head with universal coil design |
| US6515573B1 (en) | 2000-06-19 | 2003-02-04 | Read-Rite Corporation | Method and system for providing edge-junction TMR utilizing a hard magnet as a pinned layer |
| US6430806B1 (en) | 2000-06-23 | 2002-08-13 | Read-Rite Corporation | Method for manufacturing an inductive write element employing bi-layer photoresist to define a thin high moment pole pedestal |
| US6512657B2 (en) | 2000-07-17 | 2003-01-28 | Read-Rite Corporation | Head suspension having gram load change reduction and method of assembly |
| US6618223B1 (en) | 2000-07-18 | 2003-09-09 | Read-Rite Corporation | High speed, high areal density inductive writer |
| US6512661B1 (en) | 2000-08-10 | 2003-01-28 | Read-Rite Corporation | Vertical giant magnetoresistance sensor utilizing an insulating bias layer |
| US6859997B1 (en) | 2000-09-19 | 2005-03-01 | Western Digital (Fremont), Inc. | Method for manufacturing a magnetic write element |
| US6989962B1 (en) | 2000-09-26 | 2006-01-24 | Western Digital (Fremont), Inc. | Inductive write head having high magnetic moment poles and low magnetic moment thin layer in the back gap, and methods for making |
| US6801408B1 (en) | 2000-11-02 | 2004-10-05 | Western Digital (Fremont), Inc. | Data storage and retrieval apparatus with thin film read head having a planar sensor element and an extra gap and method of fabrication thereof |
| US6807332B1 (en) | 2000-11-06 | 2004-10-19 | Western Digital (Fremont), Inc. | Piezoelectric actuated optical switch |
| US6958885B1 (en) | 2000-12-21 | 2005-10-25 | Western Digital (Fremont), Inc. | Insulation layer structure for inductive write heads and method of fabrication |
| US6785955B1 (en) | 2001-01-23 | 2004-09-07 | Western Digital (Fremont), Inc. | Method for providing pedestal-defined zero throat writer |
| US6577470B1 (en) | 2001-01-25 | 2003-06-10 | Read-Rite Corporation | Method and system for providing a tape head subassembly structure having an integrated wear bar and outrigger rail |
| US6661625B1 (en) | 2001-02-20 | 2003-12-09 | Kyusik Sin | Spin-dependent tunneling sensor with low resistance metal oxide tunnel barrier |
| US6888184B1 (en) | 2001-02-23 | 2005-05-03 | Western Digital (Fremont), Inc. | Shielded magnetic ram cells |
| US6873547B1 (en) | 2001-02-23 | 2005-03-29 | Read Rite Corporation | High capacity MRAM memory array architecture |
| US6552928B1 (en) | 2001-02-23 | 2003-04-22 | Read-Rite Corporation | Read-write control circuit for magnetic tunnel junction MRAM |
| US6687178B1 (en) | 2001-02-23 | 2004-02-03 | Western Digital (Fremont), Inc. | Temperature dependent write current source for magnetic tunnel junction MRAM |
| US6803615B1 (en) | 2001-02-23 | 2004-10-12 | Western Digital (Fremont), Inc. | Magnetic tunnel junction MRAM with improved stability |
| US6721203B1 (en) | 2001-02-23 | 2004-04-13 | Western Digital (Fremont), Inc. | Designs of reference cells for magnetic tunnel junction (MTJ) MRAM |
| US6700738B1 (en) | 2001-03-16 | 2004-03-02 | Kyusik Sin | Read/write head coil tap having upper and lower portions |
| US7289303B1 (en) | 2001-04-05 | 2007-10-30 | Western Digital (Fremont), Llc | Spin valve sensors having synthetic antiferromagnet for longitudinal bias |
| US6829160B1 (en) | 2001-04-06 | 2004-12-07 | Western Digital (Fremont), Inc. | Magnetic ram cell with amplification circuitry and MRAM memory array formed using the MRAM cells |
| US6515791B1 (en) | 2001-04-06 | 2003-02-04 | Read-Rite Corporation | Active reflection and anti-reflection optical switch |
| US6704158B2 (en) | 2001-06-05 | 2004-03-09 | Western Digital (Fremont), Inc. | Shear mode multilayered collocated micro-actuator for dual-stage servo controllers in disk drives |
| US6376964B1 (en) | 2001-05-16 | 2002-04-23 | Read-Rite Corporation | Collocated rotating flexure microactuator for dual-stage servo in disk drives |
| US6760196B1 (en) | 2001-12-12 | 2004-07-06 | Western Digital, Inc. | Microactuator with offsetting hinges and method for high-resolution positioning of magnetic read/write head |
| US6870712B2 (en) | 2001-06-05 | 2005-03-22 | Western Digital (Fremont), Inc. | Inductive writer with flat top pole and pedestal defined zero throat |
| US6798616B1 (en) | 2001-07-10 | 2004-09-28 | Western Digital (Fremont), Inc. | Write head architecture for improved manufacturability |
| US7349179B1 (en) | 2001-07-16 | 2008-03-25 | Western Digital (Fremont), Llc | Write head for improved manufacturability larger write field and reduced adjacent track erasure |
| US6418048B1 (en) | 2001-08-15 | 2002-07-09 | Read-Rite Corporation | Spin-dependent tunneling sensor suitable for a magnetic memory |
| US6512690B1 (en) | 2001-08-15 | 2003-01-28 | Read-Rite Corporation | High sensitivity common source amplifier MRAM cell, memory array and read/write scheme |
| US6683763B1 (en) | 2001-08-15 | 2004-01-27 | Western Digital (Fremont), Inc. | Method and system for providing a self-aligned electrical contact for a TMR element |
| US6809899B1 (en) | 2001-08-20 | 2004-10-26 | Western Digital (Fremont), Inc. | Magnetic heads for perpendicular recording with trapezoidal pole tips |
| US7027274B1 (en) | 2001-08-30 | 2006-04-11 | Western Digital (Fremont), Inc. | Spin-dependent tunneling read/write sensor for hard disk drives |
| US6791793B1 (en) | 2001-09-14 | 2004-09-14 | Western Digital (Fremont), Inc. | Perpendicular recording write head having a recessed magnetic adjunct pole and method of making the same |
| US6816345B1 (en) | 2001-09-24 | 2004-11-09 | Western Digital (Fremont), Inc. | Magnetoresistive sensors having submicron track widths and method of making |
| US6754049B1 (en) | 2001-10-16 | 2004-06-22 | Western Digital (Fremont), Inc. | Transducers for perpendicular recording with inductive cancellation at MR sensor |
| US6987643B1 (en) | 2001-10-23 | 2006-01-17 | Western Digital (Fremont), Inc. | Pole structure to relieve adjacent track writing |
| US6721138B1 (en) | 2001-10-24 | 2004-04-13 | Western Digital (Fremont), Inc. | Inductive transducer with stitched pole tip and pedestal defining zero throat height |
| US7054113B1 (en) | 2001-10-25 | 2006-05-30 | Western Digital (Fremont), Inc. | Reader/writer for magnetic memory |
| US6583968B1 (en) | 2001-10-31 | 2003-06-24 | Western Digital Technologies, Inc. | Spindle motor hub having equivalent MR read element bias voltage to mitigate potential between disk and MR read element |
| US6961221B1 (en) | 2001-12-18 | 2005-11-01 | Western Digital (Fremont), Inc. | Piezoelectric microactuators with substantially fixed axis of rotation and magnified stroke |
| US6807030B1 (en) | 2001-12-18 | 2004-10-19 | Western Digital (Fremont), Inc. | Enclosed piezoelectric microactuators coupled between head and suspension |
| US6751055B1 (en) | 2002-01-08 | 2004-06-15 | Western Digital (Fremont), Inc. | Inductive transducer with reduced pole tip protrusion |
| US6737281B1 (en) | 2002-01-08 | 2004-05-18 | Western Digital (Fremont), Inc. | Method of making transducer with inorganic nonferromagnetic apex region |
| US6747301B1 (en) | 2002-02-06 | 2004-06-08 | Western Digital (Fremont), Inc. | Spin dependent tunneling barriers formed with a magnetic alloy |
| US6639291B1 (en) | 2002-02-06 | 2003-10-28 | Western Digital (Fremont), Inc. | Spin dependent tunneling barriers doped with magnetic particles |
| US6724572B1 (en) | 2002-02-28 | 2004-04-20 | Western Digital, Inc. | Inductive transducer with recessed leading pole layer |
| US7307814B1 (en) | 2002-03-01 | 2007-12-11 | Western Digital (Fremont), Llc | Pedestal defined zero throat writer having a recessed pedestal |
| US6859343B1 (en) | 2002-03-19 | 2005-02-22 | Western Digital, Inc. | Hybrid diffuser for minimizing thermal pole tip protrusion and reader sensor temperature |
| US7035046B1 (en) | 2002-03-19 | 2006-04-25 | Western Digital (Fremont), Inc. | System and method for minimizing thermal pole tip protrusion |
| US6757140B1 (en) | 2002-03-19 | 2004-06-29 | Western Digital, Inc. | Electrostatic microelectromechanical (MEM) microactuator for precise read/write head positioning |
| US6873494B2 (en) | 2002-04-29 | 2005-03-29 | Western Digital (Fremont), Inc. | Write head with high moment film layer having tapered portion extending beyond write gap layer |
| US7522377B1 (en) | 2002-05-01 | 2009-04-21 | Western Digital (Fremont), Llc | Magnetic write head with high moment magnetic thin film formed over seed layer |
| US6778358B1 (en) | 2002-05-01 | 2004-08-17 | Western Digital (Fremont), Inc. | Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel |
| US6744608B1 (en) | 2002-05-14 | 2004-06-01 | Western Digital (Fremont), Inc. | Method and system for making TMR junctions |
| US6942824B1 (en) | 2002-05-22 | 2005-09-13 | Western Digital (Fremont), Inc. | UV curable and electrically conductive adhesive for bonding magnetic disk drive components |
| US6909578B1 (en) | 2002-05-30 | 2005-06-21 | Western Digital (Fremont), Inc. | Method and system for reducing thermal pole tip protrusion |
| US7133253B1 (en) | 2002-06-03 | 2006-11-07 | Western Digital (Fremont), Inc. | Pole tip with sides flared at media-facing surface |
| US6861937B1 (en) | 2002-06-25 | 2005-03-01 | Western Digital (Fremont), Inc. | Double winding twin coil for thin-film head writer |
| US6806035B1 (en) | 2002-06-25 | 2004-10-19 | Western Digital (Fremont), Inc. | Wafer serialization manufacturing process for read/write heads using photolithography and selective reactive ion etching |
| US6713801B1 (en) | 2002-07-09 | 2004-03-30 | Western Digital (Fremont), Inc. | α-tantalum lead for use with magnetic tunneling junctions |
| US6680863B1 (en) | 2002-07-09 | 2004-01-20 | Western Digital (Fremont), Inc. | MRAM memory array having merged word lines |
| US6707083B1 (en) | 2002-07-09 | 2004-03-16 | Western Digital (Fremont), Inc. | Magnetic tunneling junction with improved power consumption |
| US6912106B1 (en) | 2002-08-06 | 2005-06-28 | Western Digital (Fremont), Inc. | Writer with a hot seed zero throat and substantially flat top pole |
| US6975486B2 (en) | 2002-08-06 | 2005-12-13 | Western Digital (Fremont), Inc. | Thin film write head having a laminated, flat top pole with bottom shaper and method of fabrication |
| US6894871B2 (en) | 2002-08-07 | 2005-05-17 | Western Digital (Fremont), Inc. | Technique for reducing pole tip protrusion in a magnetic write head and GMR stripe temperature in an associated read head structure utilizing one or more internal diffuser regions |
| US6879464B2 (en) | 2002-08-16 | 2005-04-12 | Western Digital (Fremont), Inc. | Air bearing having a cavity patch surface coplanar with a leading edge pad surface |
| US7211339B1 (en) | 2002-08-22 | 2007-05-01 | Western Digital (Fremont), Inc. | Highly conductive lead adjoining MR stripe and extending beyond stripe height at junction |
| US6999384B2 (en) | 2002-09-27 | 2006-02-14 | Carnegie Mellon University | Device with waveguide defined by dielectric in aperture of cross-track portion of electrical conductor for writing data to a recording medium |
| US6934129B1 (en) | 2002-09-30 | 2005-08-23 | Western Digital (Fremont), Inc. | Magnetoresistive sensor with overlapping lead layers including alpha tantalum and conductive layers |
| US6989972B1 (en) | 2002-09-30 | 2006-01-24 | Western Digital (Fremont), Inc. | Magnetoresistive sensor with overlapping leads having distributed current |
| US6940688B2 (en) | 2002-10-21 | 2005-09-06 | Western Digital (Fremont), Inc. | Coil inductive writer having a low inductance and short yoke length |
| US6950266B1 (en) | 2002-10-28 | 2005-09-27 | Western Digital (Fremont), Inc. | Active fly height control crown actuator |
| US6891702B1 (en) | 2002-10-31 | 2005-05-10 | Western Digital Technologies, Inc. | Method and devices for providing magnetoresistive heads with protection from electrostatic discharge and electric overstress events |
| US7113366B1 (en) | 2002-11-07 | 2006-09-26 | Western Digital (Fremont), Inc. | Double-nosed inductive transducer with reduced off-track writing |
| US7116517B1 (en) | 2002-12-18 | 2006-10-03 | Western Digital (Fremont), Inc. | Stitched pole write element with a T-shaped pole tip portion |
| US7057857B1 (en) | 2002-12-20 | 2006-06-06 | Western Digital (Fremont), Inc. | Dimple pivot post for a rotary co-located microactuator |
| US6888704B1 (en) | 2003-01-22 | 2005-05-03 | Western Digital (Fremont), Inc. | Method and system for providing high sensitivity giant magnetoresistive sensors |
| US6943993B2 (en) | 2003-02-11 | 2005-09-13 | Western Digital (Fremont), Inc. | Magnetic recording head with a side shield structure for controlling side reading of thin film read sensor |
| US7006327B2 (en) | 2003-02-27 | 2006-02-28 | Western Digital (Fremont), Inc. | Thin film recording head with a buried coil providing a shortened yoke and improved dimension control |
| US7286329B1 (en) | 2003-04-02 | 2007-10-23 | Western Digital (Fremont), Llc | GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers |
| US7012832B1 (en) | 2003-10-31 | 2006-03-14 | Western Digital (Fremont), Inc. | Magnetic memory cell with plural read transistors |
| US7126790B1 (en) | 2003-11-26 | 2006-10-24 | Western Digital (Fremont), Inc. | Magnetic head for perpendicular recording with magnetic loop providing non-perpendicular write field |
| US7126788B1 (en) | 2003-11-26 | 2006-10-24 | Western Digital (Fremont), Inc. | Trailing edge recording magnetic head with reversed double bias coil and deflection pole for perpendicular recording with a non-perpendicular write field |
| US8104166B1 (en) | 2003-12-19 | 2012-01-31 | Western Digital (Fremont), Llc | Self-aligned method for fabricating a high density GMR read element |
| US7310204B1 (en) | 2003-12-19 | 2007-12-18 | Western Digital (Fremont), Llc | Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layer |
| US7239478B1 (en) | 2004-01-31 | 2007-07-03 | Western Digital (Fremont), Inc. | Write element for perpendicular recording in a data storage system |
| US7342752B1 (en) | 2004-01-31 | 2008-03-11 | Western Digital (Fremont), Llc | Magnetoresistive read head having a bias structure with at least one dusting layer |
| US7199974B1 (en) | 2004-02-02 | 2007-04-03 | Western Digital (Fremont), Inc. | Read/write head with reduced pole tip protrusion |
| US7248433B1 (en) | 2004-02-02 | 2007-07-24 | Western Digital (Fremont), Inc. | Magnetic head with stitched top pole layer and single layer coil or solenoidal coil |
| US7212384B1 (en) | 2004-02-27 | 2007-05-01 | Western Digital (Fremont), Inc. | Magnetic read head with recessed hard bias and current leads |
| US7639457B1 (en) | 2004-02-27 | 2009-12-29 | Western Digital (Fremont), Llc | Magnetic sensor with underlayers promoting high-coercivity, in-plane bias layers |
| US7292409B1 (en) | 2004-02-27 | 2007-11-06 | Western Digital (Fremont), Llc | Magnetic head with thin trailing pedestal layer |
| US7248449B1 (en) | 2004-03-31 | 2007-07-24 | Western Digital (Fremont), Inc. | Magnetoresistive read sensor with reduced effective shield-to-shield spacing |
| US8670211B1 (en) | 2004-03-31 | 2014-03-11 | Western Digital (Fremont), Llc | Method and system for providing high magnetic flux saturation CoFe films |
| US7280325B1 (en) | 2004-03-31 | 2007-10-09 | Western Digital (Fremont), Llc | Ferromagnetic structure including a first section separated from a ferromagnetic layer by an electrically conductive nonmagnetic spacer and a second section elongated relative to the first section in at least one dimension |
| US7110289B1 (en) | 2004-03-31 | 2006-09-19 | Western Digital (Fremont), Inc. | Method and system for controlling MRAM write current to reduce power consumption |
| US20070146866A1 (en) | 2004-03-31 | 2007-06-28 | Japan Science And Technology Agency | Optical converter |
| US6934113B1 (en) | 2004-03-31 | 2005-08-23 | Western Digital (Fremont), Inc. | Method and system for providing dynamic actuation of a write head using a strain element |
| US7333295B1 (en) | 2004-03-31 | 2008-02-19 | Western Digital (Fremont), Llc | Magnetic recording head with high saturation magnetic flux density CoNiFe thin film composition |
| US7193815B1 (en) | 2004-04-06 | 2007-03-20 | Western Digital (Fremont), Inc. | Shielded pole magnetic head for perpendicular recording |
| US7672086B1 (en) | 2004-04-28 | 2010-03-02 | Western Digital (Fremont), Llc | Method and system for providing a magnetic element having a current confined layer |
| US7307818B1 (en) | 2004-04-30 | 2007-12-11 | Western Digital (Fremont), Llc | Method and system for providing a stable spin filter |
| US7660080B1 (en) | 2004-04-30 | 2010-02-09 | Western Digital (Fremont), Llc | Read/write head with dynamic flying height control by magnetostriction |
| US7248431B1 (en) | 2004-04-30 | 2007-07-24 | Yinshi Liu | Method of fabricating a perpendicular recording write head having a gap with two portions |
| US7199975B1 (en) | 2004-05-15 | 2007-04-03 | Western Digital (Fremont), Inc. | Magnetic head for perpendicular recording with hard bias structure for write pole tip |
| US7092195B1 (en) | 2004-05-28 | 2006-08-15 | Western Digital (Fremont), Inc. | Method of using a magnetic write head having an internal heater |
| US7238292B1 (en) | 2004-07-30 | 2007-07-03 | Western Digital (Fremont), Inc. | Method of fabricating a write element with a reduced yoke length |
| US7522379B1 (en) | 2004-07-30 | 2009-04-21 | Western Digital (Fremont), Llc | Write element with recessed pole and heat sink layer for ultra-high density writing |
| US7379269B1 (en) | 2004-07-30 | 2008-05-27 | Western Digital (Fremont), Llc | Write element with reduced yoke length for ultra-high density writing |
| US7318947B1 (en) | 2004-08-31 | 2008-01-15 | Western Digital (Fremont), Llc | Method and apparatus for controlling magnetostriction in a spin valve sensor |
| US7170725B1 (en) | 2004-09-01 | 2007-01-30 | Western Digital (Fremont), Inc. | Magnetic sensor having an aluminum-nitride seed layer for an anti-ferromagnetic layer |
| US7595967B1 (en) | 2004-09-07 | 2009-09-29 | Western Digital (Fremont), Llp | Method for fabricating a spacer layer for a magnetoresistive element |
| US7296339B1 (en) | 2004-09-08 | 2007-11-20 | Western Digital (Fremont), Llc | Method for manufacturing a perpendicular magnetic recording head |
| US7124654B1 (en) | 2004-09-30 | 2006-10-24 | Western Digital (Fremont), Inc. | Method for determining a microactuator range of movement |
| US7131346B1 (en) | 2004-10-15 | 2006-11-07 | Western Digital (Fremont), Inc. | Spin stand testing system with fine positioner for head stack assembly |
| US7041985B1 (en) | 2004-11-12 | 2006-05-09 | Western Digital (Fremont), Inc. | Manipulator for microscopy sample preparation and methods for making and use thereof |
| US7284316B1 (en) | 2004-11-17 | 2007-10-23 | Western Digital (Fremont), Llc | Method for forming a hard bias structure in a magnetoresistive sensor |
| US7310206B2 (en) * | 2004-12-28 | 2007-12-18 | Sae Magnetics (H.K.) Ltd. | Magnetic thin film head with heat-assisted write section and hard disk drive incorporating same |
| US7428124B1 (en) | 2005-01-18 | 2008-09-23 | Western Digital (Fremont), Llc | Magnetic recording head with resistive heating element and thermal barrier layer |
| US7372665B1 (en) | 2005-01-18 | 2008-05-13 | Western Digital (Fremont), Llc | Magnetic recording head with resistive heating element located near the write coil |
| US7430098B1 (en) | 2005-01-18 | 2008-09-30 | Western Digital (Fremont), Llc | Perpendicular magnetic recording head with dynamic flying height heating element |
| US7819979B1 (en) | 2005-01-31 | 2010-10-26 | Western Digital (Fremont), Llc | Method and system for cleaning magnetic artifacts using a carbonyl reactive ion etch |
| US7444740B1 (en) | 2005-01-31 | 2008-11-04 | Western Digital (Fremont), Llc | Damascene process for fabricating poles in recording heads |
| US7363697B1 (en) | 2005-02-18 | 2008-04-29 | Western Digital (Fremont), Llc | Method for manufacturing a group of head gimbal assemblies |
| US6969989B1 (en) | 2005-03-11 | 2005-11-29 | Western Digital (Fremont), Inc. | Method for characterizing a perpendicular recording head writing pole |
| US7417832B1 (en) | 2005-04-26 | 2008-08-26 | Western Digital (Fremont), Llc | Magnetoresistive structure having a novel specular and filter layer combination |
| US7869160B1 (en) | 2005-04-27 | 2011-01-11 | Western Digital (Fremont), Llc | Perpendicular recording head with shaped pole surfaces for higher linear data densities |
| US7552523B1 (en) | 2005-07-01 | 2009-06-30 | Western Digital (Fremont), Llc | Method for manufacturing a perpendicular magnetic recording transducer |
| US7551406B1 (en) | 2005-07-01 | 2009-06-23 | Western Digital (Fremont), Llc | Dual electrical lapping guides with common bonding pad |
| US7554767B1 (en) | 2005-07-01 | 2009-06-30 | Western Digital (Fremont), Llc | Electrical lapping guide disposed laterally relative to a shield pedestal |
| US8333008B1 (en) | 2005-07-29 | 2012-12-18 | Western Digital (Fremont), Llc | Method for manufacturing a perpendicular magnetic recording transducer |
| US8424192B1 (en) | 2005-08-08 | 2013-04-23 | Western Digital (Fremont), Llc | Method for manufacturing a pole for a magnetic recording head |
| US7522382B1 (en) | 2005-08-22 | 2009-04-21 | Western Digital (Fremont), Llc | Head stack assembly with interleaved flexure tail bond pad rows |
| US7684160B1 (en) | 2006-02-06 | 2010-03-23 | Western Digital (Fremont), Llc | Magnetoresistive structure having a novel specular and barrier layer combination |
| US7419891B1 (en) | 2006-02-13 | 2008-09-02 | Western Digital (Fremont), Llc | Method and system for providing a smaller critical dimension magnetic element utilizing a single layer mask |
| US7493688B1 (en) | 2006-02-13 | 2009-02-24 | Western Digital (Fremont), Llc | Method of manufacturing a magnetic recording transducer |
| US7508627B1 (en) | 2006-03-03 | 2009-03-24 | Western Digital (Fremont), Llc | Method and system for providing perpendicular magnetic recording transducers |
| US7542246B1 (en) | 2006-04-18 | 2009-06-02 | Western Digital (Fremont), Llc | Transducer with pole tip protrusion compensation layer |
| US7349170B1 (en) | 2006-04-28 | 2008-03-25 | Western Digital (Fremont), Llc | Method of monitoring operation of a disk drive by analyzing the envelope of a read-back signal in the frequency domain |
| US8866007B2 (en) | 2006-06-07 | 2014-10-21 | California Institute Of Technology | Plasmonic photovoltaics |
| US8141235B1 (en) | 2006-06-09 | 2012-03-27 | Western Digital (Fremont), Llc | Method for manufacturing a perpendicular magnetic recording transducers |
| WO2008030666A2 (en) | 2006-07-25 | 2008-03-13 | The Board Of Trustees Of The University Of Illinois | Multispectral plasmonic crystal sensors |
| US20080158563A1 (en) | 2006-08-21 | 2008-07-03 | Pierre Simon Joseph Berini | Sensors |
| US7672080B1 (en) | 2006-09-15 | 2010-03-02 | Western Digital (Fremont), Llc | Laminated perpendicular writer head including amorphous metal |
| US8134894B2 (en) | 2006-10-16 | 2012-03-13 | Sharp Kabushiki Kaisha | Surface plasmon polariton direction change device, read/write head, laser-assisted magnetic recording apparatus, and optical circuit |
| US7719795B2 (en) | 2006-11-15 | 2010-05-18 | Western Digital (Fremont), Llc | Head having a transducer heater and an air bearing surface with a flow-diversion dam and pressure-relief trough disposed upstream of the transducer |
| US8689430B1 (en) | 2006-11-29 | 2014-04-08 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR)head |
| US7688546B1 (en) | 2006-12-21 | 2010-03-30 | Western Digital (Fremont), Llc | Perpendicular magnetic recording head having nonmagnetic insertion layers |
| US7695761B1 (en) | 2006-12-21 | 2010-04-13 | Western Digital (Fremont), Llc | Method and system for providing a spin tunneling magnetic element having a crystalline barrier layer |
| US8308921B1 (en) | 2006-12-21 | 2012-11-13 | Western Digital (Fremont), Llc | Mask for increased uniformity in ion beam deposition |
| US7371152B1 (en) | 2006-12-22 | 2008-05-13 | Western Digital (Fremont), Llc | Non-uniform subaperture polishing |
| US7911735B1 (en) | 2007-03-09 | 2011-03-22 | Western Digital (Fremont), Llc | Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layer |
| US7911737B1 (en) | 2007-03-23 | 2011-03-22 | Western Digital (Fremont), Llc | Method and system for providing a PMR head having an antiferromagnetically coupled pole |
| US7855854B2 (en) | 2007-04-17 | 2010-12-21 | Western Digital (Fremont), Llc | Head with an air bearing surface having a shallow recessed trailing air flow dam |
| US7872833B2 (en) | 2007-04-17 | 2011-01-18 | Western Digital (Fremont) , LLC | Head with a transducer overcoat having a trailing air flow dam that is shallowly recessed from an air bearing surface |
| US8373945B1 (en) | 2007-04-23 | 2013-02-12 | Western Digital (Fremont), Llc | Magnetic writer having a split yoke |
| US8559141B1 (en) | 2007-05-07 | 2013-10-15 | Western Digital (Fremont), Llc | Spin tunneling magnetic element promoting free layer crystal growth from a barrier layer interface |
| US7736823B1 (en) | 2007-05-11 | 2010-06-15 | Western Digital (Fremont), Llc | Method and system for providing optical proximity correction for structures such as a PMR nose |
| US8072705B1 (en) | 2007-05-11 | 2011-12-06 | Western Digital (Fremont), Llc | Method and system for providing a magnetic writer using a BARC |
| US7440220B1 (en) | 2007-05-29 | 2008-10-21 | Western Digital (Fremont), Llc | Method for defining a touch-down power for head having a flying height actuator |
| US7436620B1 (en) | 2007-05-29 | 2008-10-14 | Western Digital (Fremont), Llc | Method for selecting an electrical power to be applied to a head-based flying height actuator |
| US7872824B1 (en) | 2007-06-11 | 2011-01-18 | Western Digital (Fremont), Llc | Setting an operating bias current for a magnetoresistive head by computing a target operating voltage |
| US7389577B1 (en) | 2007-06-26 | 2008-06-24 | Western Digital (Fremont), Llc | Method to fabricate an ESD resistant tunneling magnetoresistive read transducer |
| US8357244B1 (en) | 2007-06-28 | 2013-01-22 | Western Digital (Fremont), Llc | Method for lifting off photoresist beneath an overlayer |
| US7829264B1 (en) | 2007-08-09 | 2010-11-09 | Western Digital (Fremont), Llc | Method and system for providing a microelectronic device using a plurality of focus distances |
| US7846643B1 (en) | 2007-11-02 | 2010-12-07 | Western Digital (Fremont), Llc | Method and system for providing a structure in a microelectronic device using a chromeless alternating phase shift mask |
| US8537494B1 (en) | 2007-11-06 | 2013-09-17 | Western Digital (Fremont), Llc | PMR head with an angled stitch layer |
| US8015692B1 (en) | 2007-11-07 | 2011-09-13 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) head |
| US7583466B2 (en) | 2007-11-15 | 2009-09-01 | Western Digital (Fremont), Llc | Disk drive determining operating fly height by detecting head disk contact from disk rotation time |
| US8077434B1 (en) | 2007-11-19 | 2011-12-13 | Western Digital (Fremont), Llc | Perpendicular magnetic recording head having a recessed magnetic base layer |
| US7916426B2 (en) | 2007-11-30 | 2011-03-29 | Western Digital (Fremont), Llc | Head with an air bearing surface having left and right leading pressurizing steps, each with short and long regions |
| US7785666B1 (en) | 2007-12-12 | 2010-08-31 | Western Digital (Fremont), Llc | Methods for fabricating a magnetic recording device |
| US8079135B1 (en) | 2007-12-13 | 2011-12-20 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) transducer |
| US8793866B1 (en) | 2007-12-19 | 2014-08-05 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording head |
| US8545999B1 (en) | 2008-02-21 | 2013-10-01 | Western Digital (Fremont), Llc | Method and system for providing a magnetoresistive structure |
| US8091210B1 (en) | 2008-03-05 | 2012-01-10 | Western Digital (Fremont), Llc | Method for providing a structure in magnetic recording transducer |
| US8179636B1 (en) | 2008-03-05 | 2012-05-15 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording writer |
| US8151441B1 (en) | 2008-03-27 | 2012-04-10 | Western Digital (Fremont), Llc | Method for providing and utilizing an electronic lapping guide in a magnetic recording transducer |
| US8169473B1 (en) | 2008-03-27 | 2012-05-01 | Western Digital (Fremont), Llc | Method and system for exposing a photoresist in a magnetic device |
| US8166632B1 (en) | 2008-03-28 | 2012-05-01 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) transducer |
| US8146236B1 (en) | 2008-03-28 | 2012-04-03 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) transducer |
| US8163185B1 (en) | 2008-03-31 | 2012-04-24 | Western Digital (Fremont), Llc | Method and apparatus for lifting off photoresist beneath an overlayer |
| US8316527B2 (en) | 2008-04-01 | 2012-11-27 | Western Digital (Fremont), Llc | Method for providing at least one magnetoresistive device |
| US8136225B1 (en) | 2008-05-15 | 2012-03-20 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording head |
| US8136224B1 (en) | 2008-05-15 | 2012-03-20 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording head utilizing a mask having an undercut line |
| US8259410B1 (en) | 2008-05-23 | 2012-09-04 | Western Digital (Fremont), Llc | Method and system for providing a magnetic head using a composite magnetic material in the recording transducer |
| US8270126B1 (en) | 2008-06-16 | 2012-09-18 | Western Digital (Fremont), Llc | Method and system for providing an improved hard bias structure |
| US8416540B1 (en) | 2008-06-26 | 2013-04-09 | Western Digital (Fremont), Llc | Method for defining a magnetoresistive junction using multiple mills at a plurality of angles |
| US8320076B1 (en) | 2008-06-26 | 2012-11-27 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer including an assist pole having surfaces angled with respect to the ABS |
| US8349195B1 (en) | 2008-06-27 | 2013-01-08 | Western Digital (Fremont), Llc | Method and system for providing a magnetoresistive structure using undercut free mask |
| US8228633B1 (en) | 2008-08-21 | 2012-07-24 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having a hybrid moment pole |
| US8276258B1 (en) | 2008-08-26 | 2012-10-02 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer |
| US8166631B1 (en) | 2008-08-27 | 2012-05-01 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer having side shields |
| US8343319B1 (en) | 2008-09-25 | 2013-01-01 | Western Digital (Fremont), Llc | Method and system for providing an improved hard bias structure |
| US8720044B1 (en) | 2008-09-26 | 2014-05-13 | Western Digital (Fremont), Llc | Method for manufacturing a magnetic recording transducer having side shields |
| US8334093B2 (en) | 2008-10-31 | 2012-12-18 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording head |
| US8136805B1 (en) | 2008-11-19 | 2012-03-20 | Western Digital (Fremont), Llc | Row bar holder |
| US8077435B1 (en) | 2008-11-20 | 2011-12-13 | Western Digital (Fremont), Llc | Current perpendicular-to-plane read sensor with back shield |
| US8547667B1 (en) | 2008-11-26 | 2013-10-01 | Western Digital (Fremont), Llc | Method and system for providing a hard bias structure in a magnetic recording transducer |
| US8649123B1 (en) | 2008-11-26 | 2014-02-11 | Western Digital (Fremont), Llc | Method to eliminate reactive ion etching (RIE) loading effects for damascene perpendicular magnetic recording (PMR) fabrication |
| US8018678B1 (en) | 2008-11-26 | 2011-09-13 | Western Digital (Fremont), Llc | Method for simultaneous electronic lapping guide (ELG) and perpendicular magnetic recording (PMR) pole formation |
| US8231796B1 (en) | 2008-12-09 | 2012-07-31 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having side shields |
| US7910267B1 (en) | 2008-12-12 | 2011-03-22 | Western Digital (Fremont), Llc | Method and system for providing optical proximity correction for structures such as a PMR nose |
| US8643980B1 (en) | 2008-12-15 | 2014-02-04 | Western Digital (Fremont), Llc | Micro-actuator enabling single direction motion of a magnetic disk drive head |
| US8320077B1 (en) | 2008-12-15 | 2012-11-27 | Western Digital (Fremont), Llc | Method and system for providing a high moment film |
| US8008912B1 (en) | 2008-12-16 | 2011-08-30 | Western Digital (Fremont), Llc | Method and system for testing P2 stiffness of a magnetoresistance transducer at the wafer level |
| US8259539B1 (en) | 2008-12-17 | 2012-09-04 | Western Digital (Fremont), Llc | Integration of a vertical cavity surface emitting laser (VCSEL) on an energy-assisted magnetic recording (EAMR) head |
| US8196285B1 (en) | 2008-12-17 | 2012-06-12 | Western Digital (Fremont), Llc | Method and system for providing a pole for a perpendicular magnetic recording head using a multi-layer hard mask |
| US8537502B1 (en) | 2009-01-30 | 2013-09-17 | Western Digital (Fremont), Llc | Method and system for providing a magnetic transducer having improved shield-to-shield spacing |
| US8404128B1 (en) | 2009-02-23 | 2013-03-26 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording head |
| US8097846B1 (en) | 2009-02-25 | 2012-01-17 | Western Digital (Fremont), Llc | Metrology and 3D reconstruction of devices in a wafer |
| US8165709B1 (en) | 2009-02-26 | 2012-04-24 | Western Digital (Fremont), Llc | Four pad self-calibrating electronic lapping guide |
| US8203800B2 (en) | 2009-03-05 | 2012-06-19 | Western Digital (Fremont), Llc | Servo design in data storage media |
| US8262918B1 (en) | 2009-03-25 | 2012-09-11 | Western Digital (Fremont), Llc | Methods of producing damascene main pole for perpendicular magnetic recording head |
| US8077418B1 (en) | 2009-03-31 | 2011-12-13 | Western Digital (Fremont), Llc | Reducing thermal protrusion of a near field transducer in an energy assisted magnetic recording head |
| US8315019B1 (en) | 2009-03-31 | 2012-11-20 | Western Digital (Fremont), Llc | Method and system for providing an improved magnetoresistive structure utilizing an oxidation buffer layer |
| US8222599B1 (en) | 2009-04-15 | 2012-07-17 | Western Digital (Fremont), Llc | Precise metrology with adaptive milling |
| US8254060B1 (en) | 2009-04-17 | 2012-08-28 | Western Digital (Fremont), Llc | Straight top main pole for PMR bevel writer |
| US8200054B1 (en) | 2009-04-19 | 2012-06-12 | Western Digital (Fremont), Llc | High efficiency grating coupling for light delivery in EAMR |
| US8400731B1 (en) | 2009-04-19 | 2013-03-19 | Western Digital (Fremont), Llc | Write head with variable side shield gaps |
| US7796356B1 (en) | 2009-05-04 | 2010-09-14 | Western Digital (Fremont), Llc | Head integrated touchdown sensor for hard disk drives |
| US7800858B1 (en) | 2009-05-04 | 2010-09-21 | Western Digital (Fremont), Llc | Differential head integrated touchdown sensors for hard disk drives |
| US20100290157A1 (en) | 2009-05-14 | 2010-11-18 | Western Digital (Fremont), Llc | Damascene coil processes and structures |
| US8074345B1 (en) | 2009-05-18 | 2011-12-13 | Western Digital (Fremont), Llc | Method of measuring a bevel angle in a write head |
| US8077557B1 (en) | 2009-05-19 | 2011-12-13 | Western Digital (Fremont), Llc | Multiple aperture VCSEL EAMR heads |
| US8191237B1 (en) | 2009-05-21 | 2012-06-05 | Western Digital (Fremont), Llc | Method for providing a structure in a magnetic transducer |
| US8225488B1 (en) | 2009-05-22 | 2012-07-24 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) pole |
| US8291743B1 (en) | 2009-05-27 | 2012-10-23 | Western Digital (Fremont), Llc | Method and system for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducer |
| US8227023B1 (en) | 2009-05-27 | 2012-07-24 | Western Digital (Fremont), Llc | Method and system for fabricating magnetic transducers with improved pinning |
| US8443510B1 (en) | 2009-05-28 | 2013-05-21 | Western Digital (Fremont), Llc | Method for utilizing an electronic lapping guide for a beveled pole in a magnetic recording transducer |
| US8171618B1 (en) | 2009-06-17 | 2012-05-08 | Western Digital (Fremont), Llc | Tunable pole trim processes for fabricating trapezoidal perpendicular magnetic recording (PMR) write poles |
| US8381391B2 (en) | 2009-06-26 | 2013-02-26 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer |
| US8164864B2 (en) | 2009-07-16 | 2012-04-24 | Western Digital (Fremont), Llc | Method and system for fabricating magnetic transducers with improved pinning |
| US8498084B1 (en) | 2009-07-21 | 2013-07-30 | Western Digital (Fremont), Llc | Magnetoresistive sensors having an improved free layer |
| US8611055B1 (en) | 2009-07-31 | 2013-12-17 | Western Digital (Fremont), Llc | Magnetic etch-stop layer for magnetoresistive read heads |
| US8486285B2 (en) | 2009-08-20 | 2013-07-16 | Western Digital (Fremont), Llc | Damascene write poles produced via full film plating |
| US8194365B1 (en) | 2009-09-03 | 2012-06-05 | Western Digital (Fremont), Llc | Method and system for providing a read sensor having a low magnetostriction free layer |
| US8024748B1 (en) | 2009-09-09 | 2011-09-20 | Western Digital Technologies, Inc. | Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk drive |
| US8449948B2 (en) | 2009-09-10 | 2013-05-28 | Western Digital (Fremont), Llc | Method and system for corrosion protection of layers in a structure of a magnetic recording transducer |
| US8233248B1 (en) | 2009-09-16 | 2012-07-31 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer using a line hard mask |
| US8307539B1 (en) | 2009-09-30 | 2012-11-13 | Western Digital (Fremont), Llc | Method for modeling devices in a wafer |
| US8385157B1 (en) | 2009-09-30 | 2013-02-26 | Western Digital Technologies, Inc. | Method and system for performing EAMR recording at high density using a large thermal spot size |
| US8279719B1 (en) | 2009-10-01 | 2012-10-02 | Western Digital (Fremont), Llc | Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk drive |
| US8385158B1 (en) | 2009-10-06 | 2013-02-26 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having a planarized near-field transducer and a sloped pole |
| JP5112474B2 (ja) | 2009-10-08 | 2013-01-09 | シャープ株式会社 | 導波路、記録ヘッドおよび記録装置 |
| US9202480B2 (en) | 2009-10-14 | 2015-12-01 | Western Digital (Fremont), LLC. | Double patterning hard mask for damascene perpendicular magnetic recording (PMR) writer |
| US8194366B1 (en) | 2009-10-14 | 2012-06-05 | Western Digital (Fremont), Llc | TMR read head structures with differential stripe heights |
| US8895844B2 (en) | 2009-10-23 | 2014-11-25 | The Board Of Trustees Of The Leland Stanford Junior University | Solar cell comprising a plasmonic back reflector and method therefor |
| US8336194B2 (en) | 2009-11-03 | 2012-12-25 | Western Digital (Fremont), Llc | Method of fabricating a tunneling magnetoresistive (TMR) reader |
| US8125856B1 (en) | 2009-11-05 | 2012-02-28 | Western Digital (Fremont), Llc | Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive |
| US8394280B1 (en) | 2009-11-06 | 2013-03-12 | Western Digital (Fremont), Llc | Resist pattern protection technique for double patterning application |
| US8164855B1 (en) | 2009-11-06 | 2012-04-24 | Western Digital (Fremont), Llc | Method and system for providing a write pole in an energy assisted magnetic recording disk drive |
| US8514398B2 (en) | 2009-11-10 | 2013-08-20 | The Regents Of The University Of California | Sensing devices and techniques using 3-D arrays based on surface plasmon excitations |
| US8322023B1 (en) | 2009-11-10 | 2012-12-04 | Western Digital (Fremont), Llc | Method for providing a wrap-around shield for a magnetic recording transducer |
| US8116171B1 (en) | 2009-11-11 | 2012-02-14 | Western Digital (Fremont), Llc | Method and system for providing energy assisted magnetic recording disk drive using a vertical surface emitting laser |
| US8375564B1 (en) | 2009-12-08 | 2013-02-19 | Western Digital (Fremont), Llc | Method for fabricating a pole of a magnetic transducer |
| US8116043B2 (en) | 2009-12-09 | 2012-02-14 | Western Digital (Fremont), Llc | Method and system for providing a magnetic transducer having an improved read sensor synthetic antiferromagnet |
| US8277669B1 (en) | 2009-12-21 | 2012-10-02 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording pole having a leading edge bevel |
| US8264797B2 (en) | 2009-12-21 | 2012-09-11 | Western Digital (Fremont), Llc | Head gimbal assembly having a radial rotary piezoelectric microactuator between a read head and a flexure tongue |
| US8451556B1 (en) | 2009-12-23 | 2013-05-28 | Western Digital (Fremont), Llc | Method and system for providing a molded capping layer for an energy assisted magnetic recording head |
| US8134794B1 (en) | 2009-12-23 | 2012-03-13 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording head in a wafer packaging configuration |
| US7982989B1 (en) | 2009-12-23 | 2011-07-19 | Western Digital (Fremont), Llc | Method and system for measuring magnetic interference width |
| US8532450B1 (en) | 2009-12-23 | 2013-09-10 | Western Digital (Fremont), Llc | Optical grating and method of manufacture |
| US8012804B1 (en) | 2009-12-23 | 2011-09-06 | Western Digital (Fremont), Llc | Method and system for mounting lasers on energy assisted magnetic recording heads |
| US8969804B2 (en) | 2010-02-15 | 2015-03-03 | Koninklijke Philips N.V. | Device for analyzing a sample using radiation in the terahertz frequency range |
| US8257597B1 (en) | 2010-03-03 | 2012-09-04 | Western Digital (Fremont), Llc | Double rie damascene process for nose length control |
| US20110215705A1 (en) | 2010-03-05 | 2011-09-08 | James Peter Long | Micro-chip plasmonic source |
| US8098547B2 (en) | 2010-03-09 | 2012-01-17 | Tdk Corporation | Optical waveguide and thermal assist magnetic recording head therewith |
| US8164760B2 (en) | 2010-03-11 | 2012-04-24 | Western Digital (Fremont), Llc | Method and system for interrogating the thickness of a carbon layer |
| US8149654B2 (en) | 2010-03-23 | 2012-04-03 | Tdk Corporation | Wave guide that attenuates evanescent light of higher order TM mode |
| US8813324B2 (en) | 2010-03-24 | 2014-08-26 | Western Digital (Fremont), Llc | Method for providing a piezoelectric multilayer |
| US8404129B1 (en) | 2010-03-31 | 2013-03-26 | Western Digital (Fremont), Llc | Method and system for providing a curved surface in a magnetic recording head |
| US8607439B1 (en) | 2010-03-31 | 2013-12-17 | Western Digital (Fremont), Llc | Method for providing an energy assisted magnetic recording (EAMR) head |
| US8456963B1 (en) | 2010-04-12 | 2013-06-04 | Western Digital (Fremont), Llc | Method and system for an energy assisted magnetic recording head having a suspension-mounted laser |
| US8341826B1 (en) | 2010-04-12 | 2013-01-01 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer using a split seed layer |
| US8320722B1 (en) | 2010-04-13 | 2012-11-27 | Western Digital (Fremont), Llc | Non-linear optical grating |
| US8358407B2 (en) | 2010-04-30 | 2013-01-22 | Hewlett-Packard Development Company, L.P. | Enhancing signals in Surface Enhanced Raman Spectroscopy (SERS) |
| US8458892B2 (en) | 2010-05-11 | 2013-06-11 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording transducer using a low energy mill |
| US8409453B1 (en) | 2010-05-12 | 2013-04-02 | Western Digital (Fremont), Llc | Method and system for providing a wrap-around shield using a patterned seed layer |
| US8422841B1 (en) | 2010-05-13 | 2013-04-16 | Western Digital (Fremont), Llc | Double optical grating |
| US8625941B1 (en) | 2010-05-20 | 2014-01-07 | Western Digital (Fremont), Llc | Broadband reflective waveguide metal gratings and their formation |
| US8375565B2 (en) | 2010-05-28 | 2013-02-19 | Western Digital (Fremont), Llc | Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducer |
| US8351307B1 (en) | 2010-06-04 | 2013-01-08 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer having non-rectangular pin cross section |
| US8343364B1 (en) | 2010-06-08 | 2013-01-01 | Western Digital (Fremont), Llc | Double hard-mask mill back method of fabricating a near field transducer for energy assisted magnetic recording |
| US8310901B1 (en) | 2010-06-09 | 2012-11-13 | Western Digital (Fremont), Llc | Method and system for providing separate write and optical modules in an energy assisted magnetic recording disk drive |
| US8320219B1 (en) | 2010-06-15 | 2012-11-27 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer |
| US8454846B1 (en) | 2010-06-17 | 2013-06-04 | Western Digital (Fremont), Llc | Method and system for providing a full wrap-around shield using a frame configured wet etch in a damascene process |
| US8264798B1 (en) | 2010-06-23 | 2012-09-11 | Western Digital (Fremont), Llc | Systems and methods for providing magnetic recording heads adapted for writing shingled tracks |
| US8248896B1 (en) | 2010-06-24 | 2012-08-21 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording disk drive having improved heat dissipation |
| US8262919B1 (en) | 2010-06-25 | 2012-09-11 | Western Digital (Fremont), Llc | Method and system for providing a perpendicular magnetic recording pole using multiple chemical mechanical planarizations |
| US8422342B1 (en) | 2010-06-25 | 2013-04-16 | Western Digital (Fremont), Llc | Energy assisted magnetic recording disk drive using a distributed feedback laser |
| US8322022B1 (en) | 2010-06-28 | 2012-12-04 | Western Digital (Fremont), Llc | Method for providing an energy assisted magnetic recording head in a wafer packaging configuration |
| US8220140B1 (en) | 2010-09-13 | 2012-07-17 | Western Digital (Fremont), Llc | System for performing bonding a first substrate to a second substrate |
| US8790524B1 (en) | 2010-09-13 | 2014-07-29 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer using a line hard mask and a wet-etchable mask |
| US8444866B1 (en) | 2010-09-21 | 2013-05-21 | Westen Digital (Fremont), LLC | Method and system for providing a perpendicular magnetic recording pole with a multi-layer side gap |
| US9018100B2 (en) | 2010-11-10 | 2015-04-28 | Western Digital (Fremont), Llc | Damascene process using PVD sputter carbon film as CMP stop layer for forming a magnetic recording head |
| US8413317B1 (en) | 2010-11-12 | 2013-04-09 | Western Digital (Fremont), Llc | Method for fabricating a structure for a microelectric device |
| US8674328B2 (en) | 2010-11-12 | 2014-03-18 | University Of Maryland College Park | Remote nanoscale photochemistry using guided emission in nanowires |
| US8518279B1 (en) | 2010-11-15 | 2013-08-27 | Western Digital (Fremont), Llc | Method and system for providing a laser cavity for an energy assisted magnetic recording head |
| US8456964B1 (en) | 2010-11-16 | 2013-06-04 | Western Digital (Fremont), Llc | Energy assisted magnetic recording head having a reflector for improving efficiency of the light beam |
| US8462592B1 (en) | 2010-11-17 | 2013-06-11 | Western Digital (Fremont), Llc | Energy-assisted magnetic recording head having waveguide capable of providing small beam spots |
| US8441756B1 (en) | 2010-12-16 | 2013-05-14 | Western Digital (Fremont), Llc | Method and system for providing an antiferromagnetically coupled writer |
| US8238202B2 (en) | 2010-12-16 | 2012-08-07 | Headway Technologies, Inc. | Directional waveguide coupler for ABS reflected light |
| US8456966B1 (en) | 2010-12-17 | 2013-06-04 | Western Digital (Fremont), Llc | Method and system for enhancing optical efficiency for an EAMR head |
| US8670295B1 (en) | 2010-12-20 | 2014-03-11 | Western Digital (Fremont), Llc | Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive |
| US8486286B1 (en) | 2010-12-21 | 2013-07-16 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording writer having an integrated NFT, heat sink, and pole |
| US8289821B1 (en) | 2010-12-21 | 2012-10-16 | Western Digital (Fremont), Llc | Method and system for pulsing EAMR disk drives |
| US8593914B2 (en) | 2010-12-22 | 2013-11-26 | Western Digital (Fremont), Llc | Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive |
| US8760819B1 (en) | 2010-12-23 | 2014-06-24 | Western Digital (Fremont), Llc | Magnetic recording sensor with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields |
| US8797686B1 (en) | 2010-12-23 | 2014-08-05 | Western Digital (Fremont), Llc | Magnetic recording transducer with short effective throat height and method of fabrication |
| US8170389B1 (en) | 2011-01-28 | 2012-05-01 | Tdk Corporation | Optical waveguide, and thermally-assisted magnetic recording head including the same |
| US8588039B1 (en) | 2011-03-02 | 2013-11-19 | Western Digital (Fremont), Llc | Energy-assisted magnetic recording head having multiple cores of different lengths |
| US8491802B1 (en) | 2011-03-08 | 2013-07-23 | Western Digital (Fremont), Llc | Method of forming a dielectric slope for EAMR and magnetic writer |
| US8307540B1 (en) | 2011-03-10 | 2012-11-13 | Western Digital (Fremont), Llc | Method for providing an energy assisted magnetic recording (EAMR) transducer |
| US8721902B1 (en) | 2011-03-11 | 2014-05-13 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording writer having a heat sink and NFT |
| US20120237878A1 (en) | 2011-03-18 | 2012-09-20 | Western Digital (Fremont), Llc | Method and system for providing a side shield for a perpendicular magnetic recording pole |
| US8790527B1 (en) | 2011-03-22 | 2014-07-29 | Western Digital (Fremont), Llc | Method and system for manufacturing tapered waveguide structures in an energy assisted magnetic recording head |
| US8456961B1 (en) | 2011-03-22 | 2013-06-04 | Western Digital (Fremont), Llc | Systems and methods for mounting and aligning a laser in an electrically assisted magnetic recording assembly |
| US8405930B1 (en) | 2011-03-23 | 2013-03-26 | Western Digital (Fremont), Llc | Method and system for providing a transducer having dual, ABS recessed auxiliary poles on opposite sides of a main pole with non-magnetic spacer adjoining back portion of main pole and positioned between auxiliary poles |
| US8597528B1 (en) | 2011-03-30 | 2013-12-03 | Western Digital (Fremont), Llc | Method and system for defining a read sensor using an ion mill planarization |
| US8547659B1 (en) | 2011-05-09 | 2013-10-01 | Western Digital (Fremont), Llc | System for providing a transducer having a main coil and an additional coil separated from the main pole by a write shield |
| US8871102B2 (en) | 2011-05-25 | 2014-10-28 | Western Digital (Fremont), Llc | Method and system for fabricating a narrow line structure in a magnetic recording head |
| US8578594B2 (en) | 2011-06-06 | 2013-11-12 | Western Digital (Fremont), Llc | Process for fabricating a magnetic pole and shields |
| US8634280B1 (en) | 2011-06-21 | 2014-01-21 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording writer having a ring shaped NFT |
| US8325569B1 (en) | 2011-06-27 | 2012-12-04 | Western Digital (Fremont), Llc | EAMR head having improved optical coupling efficiency |
| US8705205B1 (en) | 2011-06-27 | 2014-04-22 | Western Digital (Fremont), Llc | Magnetic recording head having a dual sidewall angle |
| US8518832B1 (en) | 2011-06-27 | 2013-08-27 | Western Digital (Fremont), Llc | Process for masking and removal of residue from complex shapes |
| US8563146B1 (en) | 2011-06-27 | 2013-10-22 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording pole having a dual sidewall angle |
| US8419953B1 (en) | 2011-06-28 | 2013-04-16 | Western Digital (Fremont), Llc | Method and system for removing an antiferromagnetic seed structure |
| US8506828B1 (en) | 2011-06-28 | 2013-08-13 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer using an ion beam scan polishing planarization |
| US8493695B1 (en) | 2011-06-28 | 2013-07-23 | Western Digital (Fremont), Llc | Method and system for providing a magnetic read transducer having an improved signal to noise ratio |
| US8480911B1 (en) | 2011-06-30 | 2013-07-09 | Western Digital (Fremont), Llc | Method and system for providing a read sensor in a magnetic recording transducer using focused ion beam scan polishing |
| US8514517B1 (en) | 2011-06-30 | 2013-08-20 | Western Digital (Fremont), Llc | Systems and methods for providing hybrid coils for magnetic write heads |
| US8524068B2 (en) | 2011-08-30 | 2013-09-03 | Western Digital (Fremont), Llc | Low-rate electrochemical etch of thin film metals and alloys |
| US8288204B1 (en) | 2011-08-30 | 2012-10-16 | Western Digital (Fremont), Llc | Methods for fabricating components with precise dimension control |
| US8958668B2 (en) * | 2011-09-13 | 2015-02-17 | Seagate Technology Llc | Plasmonic transducer having two metal elements with a gap disposed therebetween |
| US8456967B1 (en) | 2011-10-12 | 2013-06-04 | Western Digital (Fremont), Llc | Systems and methods for providing a pole pedestal for microwave assisted magnetic recording |
| US8320220B1 (en) | 2011-10-13 | 2012-11-27 | Western Digital (Fremont), Llc | Method and system for providing an energy assisted magnetic recording disk drive having a non-conformal heat spreader |
| US8533937B1 (en) | 2011-10-18 | 2013-09-17 | Western Digital (Fremont), Llc | Method of forming a fully wrapped-around shielded PMR writer pole |
| US8582238B1 (en) | 2011-10-21 | 2013-11-12 | Western Digital (Fremont), Llc | Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shields |
| US8419954B1 (en) | 2011-10-31 | 2013-04-16 | Western Digital (Fremont), Llc | Method for providing a side shield for a magnetic recording transducer |
| US8693141B1 (en) | 2011-11-08 | 2014-04-08 | Western Digital (Fremont), Llc | Systems and methods for providing stacked writer leads for magnetic transducers |
| US8491801B1 (en) | 2011-11-08 | 2013-07-23 | Western Digital (Fremont), Llc | Method and system for providing an NFT using a sacrificial NFT structure |
| US8630068B1 (en) | 2011-11-15 | 2014-01-14 | Western Digital (Fremont), Llc | Method and system for providing a side shielded read transducer |
| US8422176B1 (en) | 2011-11-15 | 2013-04-16 | Western Digital (Fremont), Llc | Method and system for providing a magnetic read transducer having a bilayer magnetic seed layer |
| US8675318B1 (en) | 2011-11-22 | 2014-03-18 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having a reduced shield-to-shield spacing |
| US8607438B1 (en) | 2011-12-01 | 2013-12-17 | Western Digital (Fremont), Llc | Method for fabricating a read sensor for a read transducer |
| US8555486B1 (en) | 2011-12-06 | 2013-10-15 | Western Digital (Fremont), Llc | Method for providing a pole in a magnetic recording transducer using a cathodic etch |
| US8749790B1 (en) | 2011-12-08 | 2014-06-10 | Western Digital (Fremont), Llc | Structure and method to measure waveguide power absorption by surface plasmon element |
| US8520336B1 (en) | 2011-12-08 | 2013-08-27 | Western Digital (Fremont), Llc | Magnetic recording head with nano scale pole tip bulge |
| US8749920B1 (en) | 2011-12-16 | 2014-06-10 | Western Digital (Fremont), Llc | Magnetic recording head with dynamic fly height heating and having thermally controlled pole tip protrusion to control and protect reader element |
| US8760823B1 (en) | 2011-12-20 | 2014-06-24 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having soft and hard magnetic bias structures |
| US8797684B1 (en) | 2011-12-20 | 2014-08-05 | Western Digital (Fremont), Llc | Magnetic writer configured for high data rate recording |
| US8599520B1 (en) | 2011-12-20 | 2013-12-03 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having an adaptive read sensor track width |
| US8670214B1 (en) | 2011-12-20 | 2014-03-11 | Western Digital (Fremont), Llc | Method and system for providing enhanced thermal expansion for hard disk drives |
| US8451563B1 (en) | 2011-12-20 | 2013-05-28 | Western Digital (Fremont), Llc | Method for providing a side shield for a magnetic recording transducer using an air bridge |
| US8611035B1 (en) | 2012-02-06 | 2013-12-17 | Western Digital (Fremont), Llc | Capacitance sensor for determining a distance between a head and a magnetic storage medium |
| US8675455B1 (en) | 2012-02-17 | 2014-03-18 | Western Digital (Fremont), Llc | Systems and methods for controlling light phase difference in interferometric waveguides at near field transducers |
| US8670294B1 (en) | 2012-02-17 | 2014-03-11 | Western Digital (Fremont), Llc | Systems and methods for increasing media absorption efficiency using interferometric waveguides |
| US9093639B2 (en) | 2012-02-21 | 2015-07-28 | Western Digital (Fremont), Llc | Methods for manufacturing a magnetoresistive structure utilizing heating and cooling |
| US8670213B1 (en) | 2012-03-16 | 2014-03-11 | Western Digital (Fremont), Llc | Methods for tunable plating seed step coverage |
| US8703397B1 (en) | 2012-03-29 | 2014-04-22 | Western Digital (Fremont), Llc | Method for providing side shields for a magnetic recording transducer |
| US8493693B1 (en) | 2012-03-30 | 2013-07-23 | Western Digital (Fremont), Llc | Perpendicular magnetic recording transducer with AFM insertion layer |
| US8520337B1 (en) | 2012-03-30 | 2013-08-27 | Western Digital (Fremont), Llc | Perpendicular magnetic recording writer pole with leading and trailing bevel side wall angles at air bearing surface |
| US8860407B2 (en) | 2012-03-30 | 2014-10-14 | Western Digital (Fremont), Llc | Method and system for performing on-wafer testing of heads |
| US8611054B1 (en) | 2012-04-11 | 2013-12-17 | Western Digital (Fremont), Llc | Antiferromagnetically-coupled soft bias magnetoresistive read head, and fabrication method therefore |
| US8526275B1 (en) | 2012-04-27 | 2013-09-03 | Westerni Digital (Fremont), LLC | Systems and methods for dissipating heat from a near-field transducer in an energy assisted magnetic recording assembly |
| US8753903B1 (en) | 2012-05-22 | 2014-06-17 | Western Digital (Fremont), Llc | Methods and apparatuses for performing wafer level characterization of a plasmon element |
| US8582241B1 (en) | 2012-05-23 | 2013-11-12 | Western Digital (Fremont), Llc | Method and system for providing a magnetic transducer having a high moment bilayer magnetic seed layer for a trailing shield |
| US8792208B1 (en) | 2012-05-25 | 2014-07-29 | Western Digital (Fremont), Llc | Method for providing side shields having non-conformal regions for a magnetic recording transducer |
| US8582253B1 (en) | 2012-06-04 | 2013-11-12 | Western Digital (Fremont), Llc | Magnetic sensor having a high spin polarization reference layer |
| US8724259B1 (en) | 2012-06-11 | 2014-05-13 | Western Digital (Fremont), Llc | Conformal high moment side shield seed layer for perpendicular magnetic recording writer |
| US8619512B1 (en) | 2012-06-22 | 2013-12-31 | Western Digital (Fremont), Llc | Stress buffer for near-field transducer in energy assisted magnetic recording and methods for fabricating the same |
| US8786983B1 (en) | 2012-06-25 | 2014-07-22 | Western Digital (Fremont), Llc | Magnetic writer having a low aspect ratio two layer coil |
| US8565049B1 (en) | 2012-06-26 | 2013-10-22 | Western Digital (Fremont), Llc | Method and system for reducing thermal protrusion of an NFT |
| US8628672B1 (en) | 2012-06-27 | 2014-01-14 | Western Digital (Fremont), Llc | Process for manufacturing a perpendicular magnetic recording writer pole with nonmagnetic bevel |
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| US8755256B2 (en) * | 2012-11-14 | 2014-06-17 | Headway Technologies, Inc. | Plasmon resonator with dual waveguide excitation for TAMR |
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| US8531801B1 (en) | 2012-12-20 | 2013-09-10 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having a composite magnetic shield with smooth interfaces |
| US20140175050A1 (en) | 2012-12-21 | 2014-06-26 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer including a wraparound shield and a rectangular pole |
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| US8780505B1 (en) | 2013-03-12 | 2014-07-15 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having an improved composite magnetic shield |
-
2014
- 2014-07-07 US US14/324,303 patent/US8976635B1/en active Active
-
2015
- 2015-06-10 CN CN201510316473.7A patent/CN105321533A/zh active Pending
-
2016
- 2016-07-22 HK HK16108804.1A patent/HK1220804A1/zh unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727057A (zh) * | 2018-07-17 | 2020-01-24 | 希捷科技有限公司 | 具有使来自波导的杂散光转向的特征的输入耦合器 |
| CN110727057B (zh) * | 2018-07-17 | 2022-02-18 | 希捷科技有限公司 | 具有使来自波导的杂散光转向的特征的输入耦合器 |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1220804A1 (zh) | 2017-05-12 |
| US8976635B1 (en) | 2015-03-10 |
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